What is surrender?
Answer: Surrender means coming to a state of doing nothing... when you can give up your own ability to do things and remain in complete acceptance of whatever outcome that may yield. For example - As long as a newborn baby does nothing, the mother does everything for it. When the child starts doing a few things, the mother lessens her responsibilities to the same extent. When the child begins to do everything, then the mother does nothing. This example fully explains what surrender is.
We must be like a day-old child..., and surrender our mind to God and Guru.