A ccording to Buddhism, the whole universe is a single, dynamic
web of energy which can exist in three forms. These three forms of
energy that exist in the universe also exist in the human
body.
Energy in the universe can exist are: 1. Free
Energy, 2. Forces, 3.
Matter.
Free energy is pure, undifferentiated energy. Therefore, this form
cannot be perceived directly or indirectly. Free, undifferentiated
energy exists in the human body as consciousness. In Buddhism,
consciousness is described as Vinnana.
Forces are a type of differentiated energy produced by moving
matter, which in turn causes movement of matter. The forces that
exist in the universe are: 1. Electricity, 2. Magnetism, 3.
Gravity.
These forces do not exist in the material form. (i.e. particles or
waves). Their existence is in the form of an energy field which can
be detected indirectly.
By these forces, the movements that occur in all matter in the
universe are inter-connected.
http://www.lankalibrary.com/Bud/energy.htm