We spend our lives in abject supplication to our neurotransmitters, performing both menial and Herculean tasks in the hopes they might grace us with their blessings. We exercise, we adventure, we tell stories, play games, listen to music, gaze at nature and art; we chase wealth, status, or just simple comfort; we touch, and we pursue the affections of others. We do all of these things for the fleeting rewards doled upon us.
Meanwhile, hard-core drug users simply storm the castle and attack our biochemical overlords for those rewards with sharp objects.
If nothing else, you have to appreciate their clarity of purpose—even if they themselves aren’t always conscious of it.