Rather than write my own post, I thought I would link to this excellent post that I found through Like Merchant Ships. She summed it up beautifully. I feel just the same way (but I am less articulate).
"Simply put, I did not make this ground on which I step, or paint the sky. Of my will, I cannot make a single blade of grass grow, or a stem bud and then flower. I am here as witness and steward, and worshiper of the Maker. I want to treat less callously what He made. And with a clothespin, a homemade meal, a planted seed, give thanks."