Even though not inherently existent, from within the sphere of enlightenment
arise the qualities of Buddha's holy body, speech and mind, which
have infinite qualities. From the sphere of the dharmakaya also arises
the enlightened activity of Buddha. This is like space because it
has no physical limitation and no points of contact, yet whole planets
and galaxies can exist within its sphere. Within the sphere of dharmakaya,
Buddha's holy activities manifest. There are six basic elements from
earth through to consciousness. Thinking in terms of the formation
of the universe, first comes the physical basis of the elements, and
then the arisal of the inhabiting sentient beings. Evolution develops
from the space element; the elemental particles - earth, water, fire
and wind - arise from space, and on disintegration return to space.
All living beings have mind, the element of consciousness.
Thinking of the arisal of a planet, we have an external cause, space,
from which the physical world arises, and an internal cause, consciousness,
from which the sentient beings arise. In the evolution of such a world
system then, we have the space and consciousness elements simultaneously.
Therefore when our bodies disintegrate, we have both the disintegration
of the material elements into space, and the absorption of the element
The explanation according to the Kalachakra Tantra goes above that
to a category beyond consciousness - the sphere of wisdom. It speaks
of two types of wisdom. The inner wisdom is the mind of clear light
and the external wisdom is voidness itself. In this explanation, when
the karma of this life is exhausted, the consciousness dissolves from
gross to subtle levels and gives way to the sphere of inner wisdom.
The internal physical elements dissolve to space and finally into
the outer wisdom sphere, namely suchness itself. This is why they
say that the basis of the external environment (the body, constituents,
elements etc) is suchness, or emptiness of inherent existence itself.
From a teaching by Geshe Wangchen on enlightened
activity as explained in The Uttaratantra, on 3rd May 1985 at Manjushri
London Centre, edited by Andy Wistreich.