I have come to ask myself this question quite a lot in the past few weeks, and my answer to this question is, "there is no meaning to life", and this has sent me into MANY spirals of depression.
Back to topic, what is the meaning of life to you?
If you're not religious and without faith, it is quite hard to find meaning in life. When you look at it scientifically, we're all just organisms on a rock floating along the bottom of an endless ocean. No one is watching us, there is no grand scheme, and we are entirely insignificant in the eyes of the universe. Nothing anyone ever does on this planet will ever amount to anything and eventually, all we know will come to an end. This is why it's so hard for people to denounce their beliefs. It's too much to take in for the average person. Listen to http://www.youtube.com/watch?v=tH2w6Oxx0kQ. It's a very sad notion but I believe we must all accept it to truly love our lives. Once we know there is no answer, we can move on and try to enjoy the short time we have here to it's fullest.
I, myself, take it day by day and whatever I desire, I work to achieve. At the moment I'm in a bit of a slump, just waiting for things to happen. Like the release of a certain Bethesda videogame in November. As you can tell from the majority of my posts here, this makes me irritable.
However, I'm also working on getting into college by this Fall quite diligently. Anyway, I find that if I do as much good as I can from the moment I wake up to the moment I fall asleep, it gives me happiness. Imagine that? Spreading my joy and making others feel good gives
me happiness. When I fail to achieve this simple goal (happens a lot), situations always feel like less than half as good as they could have been.
Another thing I do that helps me get by is preserve life in whatever form it comes. From not eating any kind of animal to carrying the occasional spider back outside instead of smashing it against my tile floor. I think most people get along fine doing these things because they are not aware of the pain they're causing but it instills too much guilt in me for my heart to be at peace so I treat everything with compassion.
Well, I hope what I've said has helped you OP and I'll leave you with this:
"A bird does not sing because it has an answer; it sings because it has a song."