This web-comic is a first-hand account of the artist's bout with depression.
Having had some shorter visits to that strange land myself, and worked with lots of men and women who are suffering from depression, I think it's spot on. I especially recognize what I talk about most about depression - that is a disease that saps the will. When you have it, you often just don't feel any will, any power or motivation to DO.
Oh, it's got some curse-words in it, just FYI.
Seattle Counseling for Depression & Anxiety