Sheaths; the natural herbal medicine practice states that the human body contains 5 sheaths, that of knowledge and bliss accompanied by that of prana, food and mind.

Sheath or layer; energetic fields of vibration that correspond to the five elements in their subtle form which are physical manifestations of creation. There are 5 koshas, and each is a
layer of our existence; they are annamaya kosha, pränamaya kosha, manomaya kosha, vijnanamaya kosha, and anandamaya kosha. There are two additional layers, “Sat” and “Chit” which are not physical.