We are not searching for something outside, and we are not trying to uncover something concealed.  Rather, we are working for the realization of that which is already revealed.  But it is so close and so familiar to us, our habit of emphasizing existential phenomena is so strong, and our judgment of good and bad is so deeply rooted that it is difficult for us to appreciate this wonderful Dharma teaching.

Exhaustion is the existential condition of the body.  "Today I am tired."  "Today I am fine." Today...whatever." "Today I am" is the essential condition and that is no other than the essence of Zen Buddhism. Honbun is the fundamental level, the ocean, the sky, that is the fundamental self, the reality which is always with you, the base or container for experience, the ongoing frame of the self. Shusho is the existential condition of the self, the experience of pleasure, anxiety, etc.