Dang, Mika, I never believed in reincarnation but your question has me wondering. My mother was always happiest when she was feeling low. She liked the attention she got when people would say, "There, there," and give her a metaphorical pat on the head.
Her idea of a great day out was to go and see the doctor and she always got there 45 minutes early. (She said it was so she wouldn't have to wait -- seriously! -- but it was really so she could tell the other patients about her illnesses.
I really don't think it's a good idea to seek a deeper level of depression. It turns people away. Unless, of course, you like to wallow in solitude.