Brahmachari

Abstinence is the result of senses getting inward to be in union with brahman

as a result of a long, sustained practice 

of turning the awareness inward 

this is brahmacharya, moving in the state of Brahman 

in this state all the senses, ---all the senses---will be experiencing a superior joy, which will not be obtainable only with sensory 

it is the effect of spiritual progress, not the cause nor the requirement