We know more of Indian Buddhism in the seventh century than in the periods which precede or follow it. The epoch was marked by the reign of the great king, or rather emperor, Harsha-Vardhana (606-648 A.D.), and the works written by Bâṇa, Bhartrihari and others who frequented his court have come down to us. Also we are fortunate in possessing the copious narrative of Hsüan Chuang, the greatest of the Chinese pilgrims, who spent sixteen years (629-645) in India as well as the work known as the "Record of the Buddhist religion as practised in India and the Malay Archipelago," composed by I-Ching who travelled in those countries from 671 to 695. I-Ching also wrote the lives of sixty Chinese pilgrims who visited India during the seventh century and probably there were many others of whom we have no record.

The reign of Harsha is thus illustrated by a number of contemporary dateable works unusual in India. The king himself wrote some Buddhist hymns,[245] and three dramas are ascribed to him but were probably composed by some of the literary men whom he patronized. For all that, the religious ideas which they contain must have had his approval. The Ratnâvalî and Priyadarśikâ are secular pieces and so far as they have any religious atmosphere it is Brahmanic, but the Nàgânanda is a Buddhist religious drama which opens with an invocation of the Buddha and has a Jâtaka story for its plot.[246] Bâṇa was himself a devout Brahman but his historical romance Harshacarita and his novel called Kâdambarî both describe a mixture of religions founded on observation of contemporary life. In an interesting passage[247] he recounts the king's visit to a Buddhist ascetic. The influence of the holy man causes the more intelligent animals in his neighbourhood, such as parrots, to devote themselves to Buddhist lore, but he is surrounded by devotees of the most diverse sects, Jains, Bhâgavatas, Pâncarâtras, Lokâyatikas with followers of Kapila, Kaṇâda and many other teachers. Mayûra, another literary protégé of Harsha's, was like Bâna a Brahman, and Subandhu, who flourished a little before them, ignores Buddhism in his romance called Vâsavadattâ. But Bhartrihari, the still popular gnomic poet, was a Buddhist. It is true that he oscillated between the court and the cloister no less than seven times, but this vacillation seems to have been due to the weakness of the flesh, not to any change of convictions. For our purpose the gist of this literature is that Hinduism in many forms, some of them very unorthodox, was becoming the normal religion of India but that there were still many eminent Buddhists and that Buddhism had sufficient prestige to attract Harsha and sufficient life to respond to his patronage.

About 600 A.D. India was exhausted by her struggle with the Huns. After it there remained only a multitude of small states and obscure dynasties, but there was evidently a readiness to accept any form of unifying and tranquillizing rule and for nearly half a century this was provided by Harsha. He conquered northern India from the Panjab to Bengal but failed to subdue the Deccan. Though a great part of his reign was spent in war, learning and education flourished. Hsüan Chuang, who was his honoured guest, gives a good account of his administration but also makes it plain that brigandage prevailed and that travelling was dangerous.

After 643 Harsha, who was growing elderly, devoted much attention to religion and may be said to have become a Buddhist, while allowing himself a certain eclectic freedom. Several creeds were represented among his immediate relatives. Devotion to Śiva was traditional in the family: his father had been a zealous worshipper of the Sun and his brother and sister were Buddhists of the Sammitîya sect. Harsha by no means disowned Brahmanic worship, but in his latter years his proclivity to Buddhism became more marked and he endeavoured to emulate the piety of Asoka. He founded rest houses and hospitals, as well as monasteries and thousands of stupas. He prohibited the taking of life and the use of animal food, and of the three periods into which his day was divided two were devoted to religion and one to business. He also exercised a surveillance over the whole Buddhist order and advanced meritorious members.

Hsüan Chuang has left an interesting account of the religious fêtes and spectacles organized by Harsha. At Kanauj he attended a great assembly during which a solemn procession took place every day. A golden image of Buddha was borne on an elephant and Harsha, dressed as Indra, held a canopy over it, while his ally Raja Kumara,[248] dressed as Brahmâ, waved a fly-whisk. It was subsequently washed by the king's own hands and in the evening his Majesty, who like Akbar had a taste for religious discussion, listened to the arguments of his Chinese guest. But the royal instructions that no one was to speak against the Master of the Law were so peremptory that even his biographer admits there was no real discussion. These edifying pageants were interrupted by disagreeable incidents which show that Harsha's tolerance had not produced complete harmony. A temporary monastery erected for the fêtes caught fire and a fanatic attempted to stab the king. He confessed under examination that he had been instigated to the crime by Brahmans who were jealous of the favours which the Buddhists received. It was also established that the incendiaries were Brahmans and, after the ringleaders had been punished, five hundred were exiled. Harsha then proceeded to Allahabad to superintend a quinquennial distribution of alms. It was his custom to let treasure accumulate for five years and then to divide it among holy men and the poor. The proceedings lasted seventy-five days and the concourse which collected to gaze and receive must have resembled the fair still held on the same spot. Buddhists, Brahmans and Jains all partook of the royal bounty and the images of Buddha, Sûrya and Śiva were worshipped on successive days, though greater honour was shown to the Buddha. The king gave away everything that he had, even his robes and jewels, and finally, arrayed in clothes borrowed from his sister, rejoiced saying "all I have has entered into incorruptible and imperishable treasuries." After this, adds Hsüan Chuang, the king's vassals offered him jewels and robes so that the treasury was replenished. This was the sixth quinquennial distribution which Harsha had held and the last, for he died in 648. He at first favoured the Hinayana but subsequently went over to the Mahayana, being moved in part by the exhortations of Hsüan Chuang.

Yet the substance of Hsüan Chuang's account is that though Buddhism was prospering in the Far East it was decaying in India. Against this can be set instances of royal piety like those described, the fame enjoyed by the shrines and schools of Magadha and the conversion of the king of Tibet in 638 A.D. This event was due to Chinese as well as Indian influence, but would hardly have occurred unless in north-eastern India Buddhism had been esteemed the religion of civilization. Still Hsüan Chuang's long catalogue of deserted monasteries[249] has an unmistakable significance. The decay was most pronounced in the north-west and south. In Gandhara there were only a few Buddhists: more than a thousand monasteries stood untenanted and the Buddha's sacred bowl had vanished. In Takshaśîla the monasteries were numerous but desolate: in Kashmir the people followed a mixed faith. Only in Udyâna was Buddhism held in high esteem. In Sind the monks were numerous but indolent.

No doubt this desolation was largely due to the depredations of Mihiragula. In the Deccan and the extreme south there was also a special cause, namely the prevalence of Jainism, which somewhat later became the state religion in several kingdoms. In Kalinga, Andhra and the kingdom of the Colas the pilgrim reports that Jains were very numerous but counts Buddhist monasteries only by tens and twenties. In Dravida there were also 10,000 monks of the Sthavira school but in Malakuta among many ruined monasteries only a few were still inhabited and here again Jains were numerous.

For all Central India and Bengal the pilgrim's statistics tell the same tale, namely that though Buddhism was represented both by monasteries and monks, the Deva-temples and unbelievers were also numerous. The most favourable accounts are those given of Kanauj, Ayodhya and Magadha where the sacred sites naturally caused the devout to congregate.

The statistics which he gives as to sects are interesting.[250] The total number of monks amounted to about 183,000. Of these only 32,000 belonged definitely to the Mahayana: more than 96,000 to the Hinayana, and 54,500 studied both systems or at any rate resided in monasteries which tolerated either course of study. Some writers speak as if after our era Mahayanism was predominant in India and the Hinayana banished to its extreme confines such as Ceylon and Kashmir. Yet about A.D. 640 this zealous Mahayanist[251] states that half the monks of India were definitely Hinayanist while less than a fifth had equally definite Mahayanist convictions. The Mahayana laid less stress on monasticism than the Hinayana and therefore its strength may have lain among the laity, but even so the admitted strength of the Hinayana is remarkable. Three Hinayanist schools are frequently mentioned, the Sthaviras, Sarvâstivâdins and Sammitîyas. The first are the well-known Sinhalese sect and were found chiefly in the south (Conjeevaram) and in East Bengal, besides the monks of the Sinhalese monastery at Gaya. The Sarvâstivâdins were found, as their history would lead us to expect, chiefly in the north and beyond the frontiers of India proper. But both were outnumbered by the Sammitîyas, who amounted to nearly 44,000 monks. The chief doctrine[252] of this sect is said to have been that individuals (puggalo) exist as such in the truest sense. This doctrine was supported by reference to the sutra known as the Burden and the Burden bearer.[253] It does not assert that there is a permanent and unchangeable soul (attâ) but it emphasizes the reality and importance of that personality which all accept as true for practical purposes. It is probable that in practice this belief differed little from the ordinary Brahmanic doctrine of metempsychosis and this may be one reason for the prevalence of the sect.