Senzaki Nyogen Sensei often quoted his teacher, Shaku Soen Zenji: “Zazen is not a difficult task.  It is a way to lead you to your long-lost home.”

Where is the original dwelling place of the many Buddhas?  Home thus becomes a koan, but it needn’t.

Sitting quietly facing the wall like Bodhidharma, as Bodhidharma, is the vast and fathomless Dharma itself.  It is the home of practice.  But explaining the original dwelling place in such a way can be like showing a rose to a new gardener.  How to get from here to there is the question.

from The Practice of Perfection by Robert Aitken