For the warrior, letting go is connected with relaxing within discipline, in order to experience freedom. Freedom here does not mean being wild or sloppy; rather it is letting yourself go so that you fully experience your existence as a human being. Letting go is completely conquering the idea that discipline is a punishment for a mistake or a bad deed that you have committed, or might like to
commit. You have to completely conquer the feeling that there is something fundamentally wrong with your human nature and that therefore you need discipline to correct your behaviour. As long as you feel that discipline comes from outside, there is still a lingering feeling that something is lacking in you. So letting go is connected with letting go of any vestiges of doubt or hesitation or embarrassment about being you as you are. You have to relax with yourself in order to fully realise that discipline is simply the expression of your basic goodness. You have to appreciate yourself, respect yourself, and let go of your doubt and embarrassment so that you can proclaim your goodness and basic sanity for the benefit of others.
~ from Shambhala: The Sacred Path of the Warrior, by Chögyam Trungpa (Tibetan, 1939-1987)