Being first to accept the inevitability of an action so that you are best prepared for the outcome.
Jiu-jitsu is a game of constant movement and endless transitions. In some cases, full resistance to the opponent's action is warranted. But, in cases where the opponent's action is unstoppable and the outcome is inevitable, it can be beneficial to yield, rather than resist, to achieve a submission, maintain control, survive an attack, and more. The sooner you yield to an inevitable outcome, the sooner you can prepare your mind and body for the resulting circumstances.