The Force is with you?

Many of us seem to believe that we are here on this earth for a purpose and that we are part of a grand design. Why?
What if we are here because we just happened - unplanned: Maybe we just 'bubbled up' gradually over the aeons of time.
I hasten to add that I'm merely expressing my opinions and beliefs here and I can't pretend to substantiate those beliefs scientifically, any more than can a theist or creationist substantiate their claims.
I don’t believe in God. I think maybe there’s a ‘Life Force’ that is a nebulous energy field that we and all matter are all literally part of and interact with.
So what about creation? Well, I think there was no creator. Who or what would have created a creator? I think everything just is. Perhaps existence of some sort of energy or matter is inevitable.
Can there ever be such a thing as nothing? I mean, empty space is not strictly empty – it’s full of various subatomic gas particles or whatever.
So I think there is always something - there always has to be something by default and that existence doesn’t require a creator.
I believe that we find our own sense of purpose and meaning in life simply by making it as comfortable and pleasant as possible.