You are trying to do exactly the same thing, except, rather than a positive feedback loop of noise, you are attempting to generate a positive feedback loop of pleasure. You hold your attention on a pleasant sensation. That feels nice, adding a bit more pleasure to your overall experience. That addition is also pleasurable, adding even more pleasure, and so on, until, instead of getting a horrible noise, you get an explosion of pleasure that goes by the names of pīti and sukha.
