If we do a little of one kind of practice and a little of another, the work
we have done in one often doesn’t continue to build as we change to the
next. It is as if we were to dig many shallow wells instead of one deep one.
In continually moving from one approach to another, we are never forced to
face our own boredom, impatience, and fears. We are never brought face to
face with ourselves. So we need to choose a way of practice that is deep and
ancient and connected with our hearts, and then make a commitment to follow
it as long as it takes to transform ourselves.
–Jack Kornfield in A Path with Heart
from Everyday Mind, edited by Jean Smith, a Tricycle book