They turn from the rites of the fire altar to the question of the deeper, inner meanings of ritual. Other teachers take a different pedagogical strategy in pointing to Brahman.
They explore speculative questions about the origin, basis, and support of the universe. Rather than seeing Brahman as pervading the universe, they speak of Brahman as wholly transcendent, describable in human terms only by saying what Brahman is not: “It is not coarse, not fine, not short, not long, odorless, tasteless, without eye, without ear, without voice, without name, unaging, undying, without measure, without inside and without outside.” This way of speaking stretches the mind beyond the available categories of the world to glimpse that which cannot be contained by human categories.
As I discuss in this answer, the Hare Krishna mantra, popularized by Chaitanya Mahaprabhu and his Gaudiya Vaishnava followers (especially the organization ISKCON), originates from the Kali Santarana Upanishad, which you can read here.
The Kali Santarana Upanishad is widely considered by many to be a later interpolation, for multiple reasons: there are no ancient commentaries of it or ancient references to it; I think it's the only Upanishad that mentions the Yuga system, which was mainly revealed to human beings in the Itihasas and Puranas; it refers to the conversation happening at the end of the Dvapara Yuga, which would only make sense if the reader is presumed to be living long after the beginning of the Kali Yuga etc.
The term Vedanta refers to teachings based primarily upon the Upanishads.
The Bhagavad Gita - the Song of God - is a celebrated and more recent addition to Hindu holy writings dating from the second century A. Which is as poison in the beginning, but is like nectar in the end; that is declared to be "good" pleasure, born from the serenity of one's own mind.
”“Some very small seeds, sir.”“Open one of those small seeds. ”“Nothing at all, sir.”“Truly from what you cannot see, the whole fig tree grows. It is the life-force which is the subtle essence of everything.Even if we assume that the kali santarana text is authentic, we must not forget that it makes huge claims about the Hare Krishna mantra for the age of Kali. Besides, other Jagadgurus did not pick that manta for their disciples. I have no objections to Bhajans in praise of Vishnu, for instance, as long as their origins are acknowledged.......(continues) after kali-yuga again satya-yuga comes and the cycle satyayuga to kaliyuga repeats several times till it becomes 1000 yugas which constitute one day of Lord Brahma as stated in the Bhagavad-gita 8.17 bhagavad-gita 8.17 says "sahasra-yuga-paryantam ahar yad brahmano viduh...".It is common among Hindu scriptures to cross-reference verses. so this kali-yuga is not the first kali-yuga of the creation nor it is the last.With: Jessica Frazier Lecturer in Religious Studies at the University of Kent and a Research Fellow at the Oxford Centre for Hindu Studies at the University of Oxford Chakravarthi Ram-Prasad Professor of Comparative Religion and Philosophy at Lancaster University Simon Brodbeck Lecturer in Religious Studies at the University of Cardiff View original broadcast.The Vedas are the more ancient of the sacred texts recognised within the Vedic / Hindu tradition of faith dating from almost three and a half thousand years ago.