The Saṃhitā of the latter consists entirely of the verses and formulas to be recited at the sacrifice, and is therefore clear (çukla), that is to say, separated from the explanatory matter which is collected in the Brāhmaṇa. Hence it is called the White (çukla) Yajurveda, while the others, under the general name of Black (kṛishṇa) Yajurveda, are contrasted with it, as containing both kinds of matter mixed up in the Saṃhitā. The text of the Vājasaneyins has been preserved in two recensions, that of the Mādhyaṃdinas and of the Kāṇvas. These are almost identical in their subject-matter as well as its arrangement. Their divergences hardly go beyond varieties of reading, which, moreover, appear only in their prose formulas, not in their verses. Agreeing thus closely, they cannot be separated in their origin by any wide interval of time. Their discrepancies probably arose rather from geographical separation, since each has its own peculiarities of spelling. The White Yajurveda in both these recensions has been edited by Professor Weber (1849–52).
It is divided into forty chapters, called adhyāyas. That it originally consisted of the first eighteen alone is indicated by external as well as internal evidence. This is the only portion containing verses and prose formulas (both having the common name of mantras) which recur in the Taittirīya Saṃhitā, the sole exceptions being a few passages relating to the horse-sacrifice in chapters 22–25. Otherwise the contents of the last twenty-two chapters are found again only in the Brāhmaṇa and the Āraṇyaka belonging to the Taittirīya Saṃhitā. Moreover, it is only the mantras of the first eighteen chapters of the Vājasaneyi Saṃhitā which are quoted and explained word by word in the first nine books of its own Brāhmaṇa, while merely a few mantras from the following seventeen chapters are mentioned in that work. According to the further testimony of an ancient index of the White Yajurveda, attributed to Kātyāyana, the ten chapters 26–35 form a supplement (khila).
The internal evidence of the Vājasaneyi Saṃhitā leads to similar conclusions. The fact that chapters 26–29 contain mantras relating to ceremonies dealt with in previous chapters and requiring to be applied to those ceremonies, is a clear indication of their supplementary character. The next ten chapters (30–39) are concerned with altogether new ceremonies, such as the human sacrifice, the universal sacrifice, and the sacrifice to the Manes. Lastly, the 40th chapter must be a late addition, for it stands in no direct relation to the ritual and bears the character of an Upanishad. Different parts of the Saṃhitā, moreover, furnish some data pointing to different periods of religious and social development. In the 16th chapter the god Rudra is described by a large number of epithets which are subsequently peculiar to Çiva. Two, however, which are particularly significant, Īçāna, “Ruler,” and Mahādeva, “Great God,” are absent here, but are added in the 39th chapter. These, as indicating a special worship of the god, represent a later development. Again, the 30th chapter specifies most of the Indian mixed castes, while the 16th mentions only a few of them. Hence, it is likely that at least some which are known to the former chapter did not as yet exist when the latter was composed.
On these grounds four chronological strata may be distinguished in the White Yajurveda. To the fundamental portion, comprising chapters 1–18, the next seven must first have been added, for these two parts deal with the general sacrificial ceremonial. The development of the ritual led to the compilation of the next fourteen chapters, which are concerned with ceremonies already treated (26–29) or entirely new (30–39). The last chapter apparently dates from a period when the excessive growth of ritual practices led to a reaction. It does not supply sacrificial mantras, but aims at establishing a mean between exclusive devotion to and total neglect of the sacrificial ceremonies.
Even the original portion of the White Yajurveda must have assumed shape somewhat later than any of the recensions of the Black. For the systematic and orderly distribution of matter by which the mantras are collected in the Saṃhitā, while their dogmatic explanation is entirely relegated to a Brāhmaṇa, can hardly be as old as the confused arrangement in which both parts are largely mixed up.
The two most important portions of the Yajurvedas deal with the new and full moon sacrifices, as well as the soma sacrifice, on the one hand, and with the construction of the fire-altar on the other. Chapters 1–10 of the White Yajurveda contain the mantras for the former, chapters 11–18 those for the latter part of the ceremonial. The corresponding ritual explanations are to be found in books 1–5 and 6–9 respectively of the Çatapatha Brāhmaṇa. In these fundamental portions even the Black Yajurveda does not intermingle the mantras with their explanations. The first book of the Taittirīya Saṃhitā contains in its first four lessons nothing but the verses and formulas to be recited at the fortnightly and the soma sacrifices; the fourth book, nothing but those employed in the fire-altar ritual. These books follow the same order as, and in fact furnish a parallel recension of, the corresponding parts of the Vājasaneyi Saṃhitā. On the other hand, the Taittirīya Saṃhitā contains within itself, but in a different part, the two corresponding Brāhmaṇas, which, on the whole, are free from admixture with mantras. The fifth book is the Brāhmaṇa of the fire ritual, and the sixth is that of the soma sacrifice; but the dogmatic explanation of the new and full moon sacrifice is altogether omitted here, being found in the third book of the Taittirīya Brāhmaṇa. In the Maitrāyaṇī Saṃhitā the distribution of the corresponding material is similar. The first three lessons of the first book contain the mantras only for the fortnightly and the soma sacrifices; the latter half of the second book (lessons 7–13), the mantras only for the fire ritual. The corresponding Brāhmaṇas begin with the sixth and the first lesson respectively of the third book. It is only in the additions to these fundamental parts of the Black Yajurveda that the separation of Mantra and Brāhmaṇa is not carried out. The main difference, then, between the Black and the White consists in the former combining within the same collection Brāhmaṇa as well as Mantra matter. As to its chief and fundamental parts, there is no reason to suppose that these two kinds of matter, which are kept separate and unmixed, are either chronologically or essentially more nearly related than are the Vājasaneyi Saṃhitā and the Çatapatha Brāhmaṇa.
The Yajurveda resembles the Sāmaveda in having been compiled for application to sacrificial rites only. But while the Sāmaveda deals solely with one part of the ritual, the soma sacrifice, the Yajurveda supplies the formulas for the whole sacrificial ceremonial. Like the Sāmaveda, it is also connected with the Rigveda; but while the former is practically altogether extracted from the Rigveda, the Yajurveda, though borrowing many of its verses from the same source, is largely an original production. Thus somewhat more than one-fourth only of the Vājasaneyi Saṃhitā is derived from the Rigveda, One half of this collection consists of verses (ṛich) most of which (upwards of 700) are found in the Rigveda; the other half is made up of prose formulas (yajus). The latter, as well as the verses not borrowed from the Rigveda, are the independent creation of the composers of the Yajurveda. This partial originality was indeed a necessary result of the growth of entirely new ceremonies and the extraordinary development of ritual detail. It became impossible to obtain from the Rigveda even approximately suitable verses for these novel requirements.
The language of the Mantra portion of the Yajurveda, though distinctly representing a later stage, yet on the whole agrees with that of the Rigveda, while separated from that of classical Sanskrit by a considerable interval.
On its mythological side the religion of the Yajurveda does not differ essentially from that of the older Veda; for the pantheon is still the same. Some important modifications in detail are, however, apparent. The figure of Prajāpati, only foreshadowed in the latest hymns of the Rigveda, comes more and more into the foreground as the chief of the gods. The Rudra of the Rigveda has begun to appear on the scene as Çiva, being several times mentioned by that name as well as by other epithets later peculiar to Çiva, such as Çankara and Mahādeva. Vishṇu now occupies a somewhat more prominent position than in the Rigveda. A new feature is his constant identification with the sacrifice. The demons, now regularly called Asuras, perpetually appear as a group of evil beings opposed to the good gods. Their conflicts with the latter play a considerable part in the myths of the Yajurveda. The Apsarases, who, as a class of celestial nymphs endowed with all the seductive charms of female beauty, occupy so important a place in post-Vedic mythology, but are very rarely mentioned in the Rigveda, begin to be more prominent in the Yajurveda, in which many of them are referred to by individual names.
Certain religious conceptions have, moreover, been modified and new rites introduced. Thus the word brahma, which in the Rigveda meant simply “devotion,” has come to signify the essence of prayer and holiness, an advance towards its ultimate sense in the Upanishads. Again, snake-worship, which is unknown to the Rigveda, now appears as an element in Indian religion. That, however, which impresses on the Yajurveda the stamp of a new epoch is the character of the worship which it represents. The relative importance of the gods and of the sacrifice in the older religion has now become inverted. In the Rigveda the object of devotion was the gods, for the power of bestowing benefits on mankind was believed to lie in their hands alone, while the sacrifice was only a means of influencing their will in favour of the offerer. In the Yajurveda the sacrifice itself has become the centre of thought and desire, its correct performance in every detail being all-important. Its power is now so great that it not merely influences, but compels the gods to do the will of the officiating priest. By means of it the Brahmans may, in fact, be said to hold the gods in their hands.