Glass Half Full

Somebody once told me they believed in what they wanted to believe in, and that stuck to me. Being full of faith that there must be some type of God, I was quite content with whatever was on my plate. I'd say that even if there isn't a God, it doesn't hurt to pray just in case someone is listening.
How can you believe in something that you really don't believe? You can pretend to, I guess. And what good is that? I want there to be God so badly, but I'm starting to believe that maybe we really just are. No purpose. No direction. No meaning. Just Life.
After that, how can you have faith in anything at all! Yet, what if you so badly want to have faith, because you have faith that in believing so, you will be able to accept situations, love them, and be able to move on to greater things.
In mere existence, if that is indeed why we are here, we have the (potential) truth. But what good is the harsh truth that only discourages one from Karma. Why does society crave to be stable, when our existence itself is not?
And of course as Keats says and I agree, "Beauty is truth, truth beauty, - that is all ye know on earth, and all ye need to know." To me, life is more beautiful with its mystery, and so I guess that's my truth. No need to unravel it. I don't want the truth, for once.
Whether there is a God or not, I think those that believe in Him are much better off. So don't find reasons not to believe, find reasons to believe. See the glass half FULL.
If you see the glass as half empty, yes you see the truth. But does the water you drink from the glass taste better knowing it is only half?
I know truth is beautiful, but so is faith.