I'm a student in Physics and I've been doing some thinking on my own (dangerous, I know). Something occurred to me about time. It moves in a direction constantly and at different rates. Since time is a dimension like the spatial ones we know love, and it moves through it, what pushes it through that dimension? Right as I typed that I have come to the realization that that question might just be one of those unanswerable absurd questions. Anyway, things require some kind of initial force to move them through the spatial dimensions. That fact makes me believe there is something analogous when looking at time. Was there some initial 'force' that pushed it during the Big Bang? Also, time dilation slows the rate of time so is there some opposing force? Time being a non-spatial dimension might blow up that theory though. Now, I'm hoping this isn't just another "If E = mc^2 is true, shouldn't photons have mass?" type of question. I can't really find any sort of answer to this through any information website or book. Any thoughts?