A useful analogy for a seeker engaged in surrender or self-inquiry is to think about what it's like to go to sleep. To fall asleep, you must relax, close your eyes, and fall away from everything in the waking world. You must let go without expectation. Asking "Am I asleep?", trying to notice the falling-asleep process, or trying to recreate the sleep you had a few weeks ago will all interfere with falling asleep. And the waking one will never know what it is like to be asleep. The seeker must have the same attitude.