A chakra is structured in the form of a cone-shaped energy vortex or spiral. Within this structure, there are actually two spirals, with one spiraling in the clockwise direction, and the other in the counter-clockwise direction. In the case of a chakra that functions with a singular endocrine gland, such as the Pineal or Pituitary, the two energy spirals are concentric, and the apex of the dual spiral is directed toward the gland. In the case of a chakra that functions with a paired endocrine gland, such as the Thymus or Adrenal glands, the two spirals are slightly offset from each other, with one apex directed toward each of the individual glands of the pair.

There are various specialties within the field of alternative medicine which deal with the energy configurations of the body. Among these disciplines, there seems to be a general consensus that the left side of the body is associated with female nature and the right side of the male.

I personally prefer the term "nurturing", rather than female; and the term "activating", rather than male; as I believe these terms are more descriptive of the energies involved. Regardless of the terms used, however, the two sides of the energy body seem to be polar opposites. With this in mind, it seems significant that the dual spirals of a chakra are also bi-polar, with the one directed toward a gland on the left side of the body spiraling in the opposite direction as the one directed toward a gland on the right side.

In the case of some of the chakras, such as the Heart Chakra and Solar Plexus chakra, the spirals are bi-directional, in that they extend out from the body both toward the front and toward the rear. In other cases, they are uni-directional and extend out in only one direction. For example, the Brow chakra extends outward only toward the front.

There is yet another distinguishing characteristic. Some of the chakras are able to transmit energies, as well as receive energies. Others are only able to receive.