Personally I find that becoming happy for simply being alive gives my life meaning. Usually this has to do with where I am; comfortable, peacful, and relaxing places can do this for me, finding beauty in just being here and now.
This accompanied with having nothing on the back of my mind as a result of completing all my tasks and having all my arrangements (work/school) in order and being without any worries.
Simply being alive and content. This is pretty hard to accomplish, but I've felt it at times, oddly enough sitting in the tub with the shower on taking deep breaths after accomplishing something great and meaningful (for me at least).
Hm, never thought this would be so hard to describe, I guess I'm complex in my simplicities (wow I'm so deep

uke

. The hope of achieving a state of absolutely NOTHING gives my life meaning, pretty weird!
Jam it back in, in the dark.