I don't believe we have a purpose either, other than to pass along our genetics and further the human species. However like Shanzy said we have the ability to create our own purposes. Richard Dawkins has a pretty good video talking this very thing, he calls them neo purposes. The video is called the purpose of the purpose.. I think having legs to walk, eye to see, and life to pass genes all seem to fit together in the same context of purpose.

I am not depressed tho, or suicidal.. I am pretty content, peaceful and happy with life. Not because my life is so easy, and not because I feel I have divine purpose.

Why do we get up, go to work, why do we bother ? Probably a big part because we need to survive.. to pass and further our genes. The other part perhaps because we want to, and because we can create our own purposes. I want to bother.. I want to bother because life is so interesting. The universe is interesting, the earth, the creatures.. It's all pretty amazing. I get to be here in a human body and mind to experience this.. pretty cool, even statistically. It really is not a question of why bother.. in my opinion it's more a question of why not bother, I mean you are already here.

I don't think offering different opinions about the subject of purpose is sucking all the hope out of anything, maybe different ideas can help others sometimes.

Depression and hope to me seems to be more a matter of perspective than a matter of purpose. Some people might want to use such purposes to help them with life, others don't.. but that doesn't automatically default to depression. Sometimes it can have the opposite effect.

I am also quite spiritual.. but without a divine purpose I understand that people can be confused how that works.