Thinking while eating breakfast

While I was sitting at the kitchen counter, eating my oatmeal, I thought about dying. Then I thought about how there could be nothing. Everything could just not exist.
Then I looked outside, through the glass door. I saw the branches of our oak tree waggling, light dodging around the edges of the leaves, dropping onto the deck around the tree-shaped spots of shade.
And I was glad that it does exist, all of this.