Surrender is not a concept.
It is an active and affirmative laying hold of who He is and reflects agreement with Him.
Surrender is not just a passive attitude. It means advancing in prayer to the Place of letting go of something in order to take up something better - The Cross.
Soldier, He is in the business of preparing you for eternity. that means some wrenching away from the things that are temporal and perishable.
Surrender is sweet. Apart from surrender there is only self-justification, judgment and treading water, at best.
Obedience is the evidence of a backbone developed in prayer