The buddha-nature has no physical form and is not
confined to one part of the body. It fills the whole
and all the parts. The hands, the feet, every single
hair contains the buddha-nature. Furthermore, the
buddha-nature is present in the earth and in that
which grows upon it. It is present in the wind and
in the sea. It inhabits that which feels and that
which does not feel; it is present in delusion as in
enlightenment. Everything that exists is made of
the buddha-nature. … The buddha-nature, then, is
the principle or law that moves everything. … It is
impossible for us to get outside the buddha-nature.

Masahiro Mori – The Buddha in the Robot