Depressive Episodes

Whenever I leave the library, a dark wave rolls over me. Why this should be I have no idea, but it's happened consistently over the last couple of weeks. I will mention this, as humorously as possible, because often the best humor comes from pain. I will propose that they let me move in, on the hypothesis that if I never leave, then I will never be sad again. However, now I think about it, I have had dark moments in the library as well. What's the answer? Perhaps I should never ask questions again.