This may or may not be defined as an energy-body, depending on the definitions used.
In the condition it’s in for most people on earth at this time, it is a vertical series of capsules (of varying size and number) which act to isolate one’s magical causality from reality and have thin flexible skins which can change shape over time. The current versions of civilization actively suppress magick, which is part of the reason for this typical encapsulation of this aspect of one’s natural causality.
In very good condition, there are no boundaries and this system consists of large diffuse areas of particles, reaching from the top to the bottom of the universe, larger near the top and bottom than in the middle and somewhat divided into different levels. In this condition it continually influences spirits to one’s benefit.