Ground
The insight that emptiness is the ground of all forms is specifically
significant for the inner journey, especially for the journey
of descent. Through the absolute descending into the world we
see that the world is grounded in emptiness, and hence is always
insubstantial and lacks any ultimate existence. The soul learns
that to live in the world from the perspective of the absolute
is to never forget that the world is ultimately insubstantial,
that it is groundless; for the absolute ground is simply absence.
More precisely, its groundlessness is its truth and freedom and
the liberation of the soul is in remembering that she can rely
ultimately only on the absolute: it is the groundless ground.
She can trust emptiness, for it is the ultimate unchanging ground
that is certain to be found at the depth of everything. In other
words, the ground of all manifest forms is that when we try to
find their ultimate essence they disappear. The unfindability
of their ultimate existence is their ground. (Inner Journey Home,
pg 430)