Don't think of what you left behind. And don't think too far ahead. For how can one leave something to which one is tied? And how can one feel accomplishment in something never attained? One should set a destination that is within one's reach. As one reaches that point another slightly higher goal can be set - and so on, as one travels up the path. In this way the mountain can be climbed in increments. Look not at the vast mountain as a whole. Rather look minutely and scrutinize each individual step. There will thus be no discouragement, for every step is a success.

"Zen Foot-Notes:...