In reply to TheHorroffice: So many things, here's a few:
- Getting really involved in amazing settings/environments. The belay at the bottom of Castle Helen is a great example, as is Mother Carey's, or the stance before the crux on Eliminate A.
- The experience of total focus or 'flow' where you're completely absorbed in the present and everything else temporarily vanishes. On a good day, this can be for an entire 40m pitch. Or for a second at the crux of a boulder problem.
- The buzz of doing something hard/scary. I don't know what the actual physiology of it is, but there's a certain rush I get quite often (not all the time by any means) which is a lot like doing really good drugs (so it's probably got something to do with dopamine release). Highball boulder problems seem to do this (the crack cocaine of climbing?), but about 5mins after finishing Brazen Buttress recently I got the same total rush of euphoria. And no comedown, great (but still massive addiction potential and objective dangers, obviously).
- Meeting people who are mainly really cool when you've got a really strong shared passion for something. And having a laugh with mates.
- Time on the lead is one kind of time on your own, as above with all attention on the holds and nothing else. But time on your own on belay ledges with the leader somewhere out of sight for an hour, with the sea crashing about and birds and seals and stuff to look at is, I reckon, really good for the soul.
- Learning, improving, overcoming challenges etc is something a lot of people get from work. A lot of climbers seem to find that climbing gives them enough of this and toss it off all day at work posting on UKC (I'm not doing this, I left my job because it was sh!t boring and gave me no sense of satisfaction).