Pleasure and pain come from your own former actions (karma)
When I read sentences like this (or similar ones in the above postings), of course taken out of context, I am always reminded of the German right-wing esoteric scene and why they prey upon a concept like Karma. They explain to themselves why the holocaust was something the jews had to endure due to their misdeeds in former lifes and that the shoa was only 'karmic compensation' and has helped their 'spiritual growth' (both citations Trutz Hardo alias Tom Hockemeyer).
The cancer from which the popular Jewish-German showmaster Hans Rosenthal died, was the price paid for being a thief and murderer in a former life (Rainer Holbe). The victims of rape also will be glad to read in that fringe literature that they have to blame themselves for what they did in former lives (http://esoleben.exit.mytoday.de/html/body_karma1.html, in German). The British may remember Glenn Hoddle and his ideas about handicapped people.
Sorry for coming late, but I think any discussion about karma is not complete without mentioning how easily this concept can be (and is) abused by the right-wing political scene.