Bhagavad Gita 15.20इति गुह्यतमं शास्त्रमिदमुक्तं मयाऽनघ।एतद्बुद्ध्वा बुद्धिमान्स्यात्कृतकृत्यश्च भारत ॥

Guhyatamam Most profound secret.Buddhiman means here a knower of the Self or Atmart.The knowledge of the Self which gives emancipation from the round of birth and death, and freedom from the bonds of Karma is eulogised in this verse. If this most profound teaching is rightly understood, known or realised, it makes a man wise and gives him illumination. After this there is nothing left for him to know or strive for. He has reached the goal of life or the aim of human existence. He has arrived at the end of his journey. His endeavour for Selfrealisation is over. He has attained perfection. He has complete knowledge of the Supreme Being. He gets Brahma Jnana. He moves in the consciousness of the Divine. He beholds the Self everywhere. He lives in Brahman. He regards all activities as His divine play.When one realises Brahman, he has discharged all the duties of life. He is liberated from the bonds of Karma. He becomes a Jivanmukta or illumined sage who has transcended the bodyconsciousness, the three alities of Nature, the three states of consciousness (wakeful state, dream and deep sleep), the pairs of opposites and the cycle of birth and death. He knows fully well that rirth has been destroyed, that what has to be done has been accomplished, that lifes highest goal has been reached and that he has nothing more to do or to learn