Jnana yoga or the path of knowledge is the shortest but most difficult path for one to practice. One has to deny or negate the apparent through constant discrimination between the real and
the unreal . Sri Ramakrishna his guru Tota Puri , Sri Sankaracarya, Sri Ramana Maharsi and Swami Vivekananda were the great exponents of this path of knowledge.
Knowledge Originated from Lord Siva, whose dwelling place is the Himalayas (Kailas). From time immemorial, great sages of India, renouncing everything for the sake of Truth, discovered in their deep meditation innumerable spiritual truths about man and the universe.Even emperors and kings used to seek their advice and blessings.
Totapuri – who had realized the ultimate truth taught Sri Ramakrsna Advaita sadhana.When he was staying at Dakshineswar, he saw a disembodied spirit climbling down from a tree. He requested that spirit to sit with him for meditation, since he saw no difference between them, both of them being manifestations of Brahman.
Sankaracarya, a great teacher of Advita, who expounded the path of knowledge preached Mayavada. According to him , the sun of knowledge, that is Atman , is always self – effulgent . It is the cloud of ignorance or Maya which hides the Self.yu
Then we have Ramana Maharsi , who was always absorbed in the thought of the self . For him the whole universe appeared like a reflection in a mirror, which is only appearance and not Reality . Then there was Swami Vivekananda, who carried the thoughts of the Eastern sages to the western world , in the present age. He proclaimed the truth of Vedanta first at the Parliament of Religions at Chicago in 1893. He founded monastic order, the Ramakrsna Math and the Ramakrishna Mission , in the name of his Gurudeva, for the spread of the message of Sanatana Dharma thoughout the world. Swami Vivekananda”s book jnana Yoga, a collection of his lectures delivered in America is a classic on Vedanta philosophy extremely useful for seekers of Truth.