The Physical body
consists of matter of the densest and slowest vibrations.
Etheric
The Etheric body
emanates out about an inch from the physical body. It's basic
function is to receive and transmit vital energy-the life force known as Prana
in Sanskrit, Ki in Japanese.
Astral
The Astral body
extends a foot or more around the body. It relates to the
individual's emotional state and thought pattern, and it's through this
body that we sense the moods or "vibrations" of other
people.
Spiritual body
Extending out
still farther from the body is the Spiritual or casual body which is made
up of subtle energies of the finest and fastest vibrations. It may
extend from a few feet to hundreds of yards, depending on the spiritual
evolution of the individual.