Several hymns are dedicated to Indr[=a]gni, Indra united with Agni; and the latter even is identified with Dyaus (iv. 1. 10), this obsolescent god reviving merely to be absorbed into Agni. As water purifies from dirt and sin (Varuna), so fire purifies (iv. 12. 4). It has been suggested on account of v. 12. 5: 'Those that were yours have spoken lies and left thee,' that there is a decrease in Agni worship. As this never really happened, and as the words are merely those of a penitent who has lied and seeks forgiveness at the hands of the god of truth, the suggestion is not very acceptable. Agni comprehends not only all naturalistic gods, but such later femininities as Reverence, Mercy, and other abstractions, including Boundlessness.
Of how great importance was the triune god Agni may be seen by comparing his three lights with the later sectarian trinity, where Vishnu, originally the sun, and (Rudra) Çiva, the lightning, are the preserver and destroyer.
We fear the reader may have thought that we were developing rather a system of mythology than a history of religion. With the close of the Vedic period we shall have less to say from a mythological point of view, but we think that it will have become patent now for what purpose was intended the mythological basis of our study. Without this it would have been impossible to trace the gradual growth in the higher metaphysical interpretation of nature which goes hand in hand with the deeper religious sense. With this object we have proceeded from the simpler to the more complex divinities. We have now to take up a side of religion which lies more apart from speculation, but it is concerned very closely with man's religious instincts—the worship of Bacchic character, the reverence for and fear of the death-god, and the eschatological fancies of the poets, together with those first attempts at creating a new theosophy which close the period of the Rig Veda.
SOMA.
Inseparably connected with the worship of Indra and Agni is that of the 'moon-plant,' soma, the intoxicating personified drink to whose deification must be assigned a date earlier than that of the Vedas themselves. For the soma of the Hindus is etymologically identified with the haoma of the Persians (the [Greek: omomi] of Plutarch[12]), and the cultus at least was begun before the separation of the two nations, since in each the plant is regarded as a god. The inspiring effect of intoxication seemed to be due to the inherent divinity of the plant that produced it; the plant was, therefore, regarded as divine, and the preparation of the draught was looked upon as a sacred ceremony[13].
This offering of the juice of the soma-plant in India was performed thrice daily. It is said in the Rig Veda that soma grows upon the mountain M[=u]javat, that its or his father is Parjanya, the rain-god, and that the waters are his sisters[14]. From this mountain, or from the sky, accounts differ, soma was brought by a hawk[15]. He is himself represented in other places as a bird; and as a divinity he shares in the praise given to Indra, "who helped Indra to slay Vritra," the demon that keeps back the rain. Indra, intoxicated by soma, does his great deeds, and indeed all the gods depend on soma for immortality. Divine, a weapon-bearing god, he often simply takes the place of Indra and other gods in Vedic eulogy. It is the god Soma himself who slays Vritra, Soma who overthrows cities, Soma who begets the gods, creates the sun, upholds the sky, prolongs life, sees all things, and is the one best friend of god and man, the divine drop (índu), the friend of Indra[16].
As a god he is associated not only with Indra, but also with Agni, Rudra, and P[=u]shan. A few passages in the later portion of the Rig Veda show that soma already was identified with the moon before the end of this period. After this the lunar yellow god regularly was regarded as the visible and divine Soma of heaven, represented on earth by the plant[17].
From the fact that Soma is the moon in later literature, and undoubtedly is recognized as such in a small number of the latest passages of the Rig Veda, the not unnatural inference has been drawn by some Vedic scholars that Soma, in hymns still earlier, means the moon; wherever, in fact, epithets hitherto supposed to refer to the plant may be looked upon as not incompatible with a description of the moon, there these epithets are to be referred directly to Soma as the moon-god, not to soma, the mere plant. Thus, with Rig Veda, X. 85 (a late hymn, which speaks of Soma as the moon "in the lap of the stars," and as "the days' banner") is to be compared VI. 39. 3, where it is said that the drop (soma) lights up the dark nights, and is the day's banner. Although this expression, at first view, would seem to refer to the moon alone, yet it may possibly be regarded as on a par with the extravagant praise given elsewhere to the soma-plant, and not be so significant of the moon as it appears to be. Thus, in another passage of the same book, the soma, in similar language, is said to "lay light in the sun," a phrase scarcely compatible with the moon's sphere of activity[18].
The decision in regard to this question of interpretation is not to be reached so easily as one might suppose, considering that a whole book, the ninth, of the Rig Veda is dedicated to Soma, and that in addition to this there are many hymns addressed to him in the other books. For in the greater number of passages which may be cited for and against this theory the objector may argue that the generally extravagant praise bestowed upon Soma through the Veda is in any one case merely particularized, and that it is not incongruous to say of the divine soma-plant, "he lights the dark nights," when one reads in general that he creates all things, including the gods. On the other hand, the advocate of the theory may reply that everything which does not apply to the moon-god Soma may be used metaphorically of him. Thus, where it is said, "Soma goes through the purifying sieve," by analogy with the drink of the plant soma passing through the sieve the poet may be supposed to imagine the moon passing through the sieve-like clouds; and even when this sieve is expressly called the 'sheep's-tail sieve' and 'wool-sieve,' this may still be, metaphorically, the cloud-sieve (as, without the analogy, one speaks to-day of woolly clouds and the 'mare's tail').
So it happens that, with an hundred hymns addressed to Soma, it remains still a matter of discussion whether the soma addressed be the plant or the moon. Alfred Hillebrandt, to whom is due the problem in its present form, declares that everywhere[19] in the Rig Veda Soma means the moon. No better hymn can be found to illustrate the difficulty under which labors the soma-exegete than IX. 15, from which Hillebrandt takes the fourth verse as conclusive evidence that by soma only the moon is meant. In that case, as will be seen from the 'pails,' it must be supposed that the poet leaps from Soma to soma without warning. Hillebrandt does not include the mention of the pails in his citation; but in this, as in other doubtful cases, it seems to us better to give a whole passage than to argue on one or two verses torn from their proper position: