Number of stages to the history of Vaishnavism place worship of Vishnu in different perspective according to the different theories by different authors. On the first stage, in its twofold aspect - historic and philosophical, is referred as by some as Bhagavata and is believed to be founded by Krishna-Vasudeva, of Yadava tribe. The philosophical basis of this stage was that supreme being is eternal, infinite and full of grace, and that liberation consisted in a life of perpetual bliss near the Lord. During this stage some believe that Pancaratra entered into alliance with ancient Samkhya yogic system, in line with tendency to combine philosophy with religion. It is this period that is described as the stage when the sect of Narayana was absorbed into temple of Krishna-Vasudeva. According to Grierson's views at this stage Bhagavatism became a sect of Brahmanised anti-Brahmanists. Hopkins often remarked on the often expressed view, that Bhagavad Gita bears witness to the compromise thus arrived at between Brahmanism and Bhagavatism - it is a Krishnaite version of a Vishnuite poem. For this reason Krishna, the personal name of Vasudeva, was given admission into the circle of Brahminical gods as an avatar of Vishnu.