82 Sensations aroused by sense objects are experienced by means of the outer instruments of the Lord of the Body or senses (Indriya) which are the pathways through which the Jiva receives worldly experience.  These are ten in number, and are of two classes:
a. The five organs of sensation     Jnanendriya

		1. The Ear     Hearing.

		2. Skin     Feeling by touch.

		3. Eye     Sight.

		4. Tongue     Taste.

		5. Nose     Smell.

b. The five organs of action     Karmendriya

		1. Mouth     Speaking.

		2. Hands     Grasping.

		3. Legs     Walking.

		4. Anus     Excretion.

		5. Genitals     Procreation.

The organs of sensation are the reactive response which the Self makes to sensation.  The organs of action are those through which effect is given to the Jiva's desires.
"The Indriya or sense is not the physical organ, but the faculty of mind operating through that organ as its instrument.  The outward sense organs are the usual means whereby on the physical plane the functions of hearing and so forth are accomplished.  But, as they are mere instruments and their power is derived from the mind, a Yogi may accomplish by the mind only all that may be done by means of these physical organs without the use of the latter....
"The three functions of attention, selection and synthesising the discreet manifold of the senses, are those belonging to that aspect of the mental body, the internal agent, called Manas.  Just as manas is necessary to the senses, the latter are necessary for manas....Manas is thus the leading indriya, of which the senses are powers."—Serpent Power, by Arthur Avalon.