Similar to Insert Name Here, a mixture of Theological and Absurdist. I suggested in another thread that life's big goal is about knowledge and skill, linking in Pattern Theory (the theory behind why we find games "fun").
It's actually something I've been struggling with for the past few months, but I thinks that's just because of a lack of "perceived progress" where I feel I haven't been getting stuff done, which further links me back into my suggestion that we're most happy when we're pushing ourselves towards something we want to achieve.