What are you here for?

If you observe things, you will be aware that most of the things that go on in the natural world go on pretty much without your involvement. Just as the sun comes up each morning without you hauling it over the horizon with a rope, so too, you hear, see, touch, feel, smell, taste, breathe and sometimes think, without any intervention or conscious intention to do so on your part. This of course does raise a bit of a question. Where then do you come into things and what exactly are you here for? If you are not the bus driver, then who are you? Are you the ticket collector?