How do you think about things?

I think associatively, deeply and incessantly about everything (when I say everything I meant everything related to the specific thing I like to think about. It was late when I wrote this :) . Its not that I think about knitting, swimming etc :) )  . I . If a topic is deep and meaningful then I feel immensely nourished by thinking about it. It does drain me though and I do it automatically. How do other people on here with official diagnoses of ASD think about things? I can stop thinking, its draining but I do enjoy it. I sometimes think that thinking is the only good thing there is to do in this life.