Answer by Suminda Sirinath S. Dharmasena for "Guard the sense doors"- What does this mean, and what is it's application?

With each contact your perceive the experience a pleasant, unpleasant or neutral feeling arises which you also perceive as either favorable, unfavorable and neutral. Guarding the sense door is you are aware of the sensation that arose and the perception that arose. Ideally you should be equanimous towards this experience, i.e., not attached or averse to the sensation and stimuli and also realise the evaluation you have given and feed the perception. If not (i.e. you react with craving, aversion or ignorance) fabrications form. In which case you have be be aware of the fabrications also. These manifest as physical feeling in the body having the characteristics of the 6 elements and the metal component has the content 50 cetasikas (52 - 2 = 50 as feeling and perceptions are also cetasikas).

Also note the initial experience even if you are have a bodily aspect which you have the characteristics of the elements. The sensation is 3 folds are present unpleasant or neutral, etc. For more details on this see Satipatthana related Suttas and literature.

The framework to durage your senses is outlined in the Cha Chakka Sutta through there are more comprehensive dispositions also in other Suttas.

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