For seeing Brahman, one has to give/Surrender five things: viz.
(1) Five Pranas (Five vital forces),
(2) Five senses (five of action and five of perception),
(3) Mind,
(4) Intellect and
(5) Ego.
This path of Brahma-Jnana or self- realization is as hard as treading on the edge of a razor.
SSSC Ch-16 & 17



