From Maezumi Roshi’s commentary on the Fukanzazengi, Eihei Dogen’s instruction on sitting and practice:
The point of our practice is not to become something other than what we already are, such as a buddha or an enlightened person, but to realize or become aware of the fact that we are, intrinsically, originally the Way itself, free and complete. If we practice to become something else, we simply put another head on top of our own, making ourselves ghosts, One head is enough!
Thirty years ago I was fortunate enough to receive Jukai from my root teacher,  Maezumi Roshi.  I hope he would not consider it rude if I were to add a line.

One head is more than enough!