[cheese_van]

For me, I choose a field that I was not particularly well-educated about, and dove in - medieval history. It's a fascinating and deep topic, and I began to collect a library of the significant histories. Went off the deep end and collected more books than I read. But the reading was fascinating, as was trying to determine who the best historians were, finding their books, and reading them for comprehension.

In short, collecting.

I suppose any type of immersion in a collectible thing might do the trick, but for me, it was both collecting the books and reading them that took my mind off burn out (and a troubled personal life).