Mahabharata Bhishma Parva Chapter 32

Mahabharata Bhishma Parva (Bhagavat-Gita Parva) Chapter 32 Bhagavad Gita Chapter VIII Arjuna said, 'What is that Brahman, what is Adhyatma, what is action, O best of male beings? What also has been said to be Adhibhuta, and what is called Adhidaiva? Who is here Adhiyajna, and how, in this body, O slayer of Madhu? And how at the time of departure art thou to be known by those that have restrained their self'? The Holy One said, 'Brahman is the Supreme and indestructible. Adhyatma is said to be its own manifestation. The offering (to any godhead in a sacrifice) which causeth the production and development of all—this is called action. Remembering me alone in (his) last moments, he that, casting off his body, departeth (hence), cometh into my essence. There is no doubt in this. Whichever form (of godhead) one remembereth when one casteth off, at the end, (his) body, unto that one he goeth, O son of Kunti, having habitually meditated on it always. Therefore, think of me at all times, and engage in battle. Fixing thy mind and understanding on me, thou wilt, without doubt, come even to me. Thinking (of the Supreme) with a mind not running to other objects and endued with abstraction in the form of uninterrupted application, one goeth, O son of Pritha, unto the Divine and Supreme male Being. He who at the time of his departure, with a steady mind, endued with reverence, with power of abstraction, and directing the life-breath called Prana between the eye-brows, thinketh of that ancient seer, who is the ruler (of all), who is minuter than the minutest atom, who is the ordainer of all, who is inconceivable in form, and who is beyond all darkness, cometh unto that Divine and Supreme Male Being. I will tell thee in brief about that seat which persons conversant with the Vedas declare to be indestructible, which is entered by ascetics freed from all longings, and in expectation of which (people) practise the vows of Brahmacharins.