We become habituated to finding shelter in our bad habits. To various degrees, every type of material sense gratification is of the same nature.
If a person is addicted to anything for a long duration of time, it’s very difficult for him to give up that habit. For example, if a person has been smoking cigarettes for thirty or forty years, it becomes an integral part of his life. That habit, due to conditioning, creates such an intense craving that mentally as well as physiologically, every part of his being is literally just longing in separation for the experience. It becomes his shelter. It’s not because of the pleasure that the cigarette gives, but because he is addicted to it and without it there is so much pain, anguish and agitation.
Thus, because of material addiction and conditioning, we take shelter of this so-called pleasure of sense gratification, because it relieves us of the suffering of being without it.