From Contemplation of Feeling: The Discourse-grouping on the Feelings (WH 303), translated from the Pali by Nyanaponika Thera (Kandy: Buddhist Publication Society, 1983).

"In one way, O monks, I have spoken of two kinds of feelings, and in other ways of three, five, six, eighteen, thirty six and one hundred and eight feelings.

"What are the two feelings? Bodily and mental feelings.

"What are the three feelings? Pleasant, painful and neither-painful-nor-pleasant feelings.

"What are the five feelings? The faculties of pleasure, pain, gladness, sadness and equanimity.

"What are the six feelings? The feelings born of sense-impression through eye, ear, nose, tongue, body and mind.

"What are the eighteen feelings? There are the (above) six feelings by which there is an approach (to the objects) in gladness; and there are six approaches in sadness and there are six approaches in equanimity.

"What are the thirty six feelings? There are six feelings of gladness based on the household life and six based on renunciation; six feelings of sadness based on the household life and six based on renunciation; six feelings of equanimity based on the household life and six based on renunciation.

"What are the hundred and eight feelings? There are the (above) thirty six feelings of the past; there are thirty six of the future and there are thirty six of the present.

"These, O monks, are called the hundred and eight feelings; and this is the way of the Dhamma presentation by which there are one hundred and eight feelings."