When you are intoxicated, it is usually the case that you are engaged in some other activity, say art or music or social interaction or ritual or what have you. And there is oftentimes a good external reason to be intoxicated, and there are modalities for getting intoxicated* and certain substances to pursue for such purposes. Intoxication - like other cultural phenomena - is always connected to numerous other things.
*There was a typo here that was bad enough that it changed the meaning of the piece, and I modified the rest of the sentence for clarity, or at least better clarity, as clear as one can be in such an instance. Attributed to an intoxication of fatigue, so to speak.