Bed of grass
When I got home, I felt strangely sad. I have never noticed this sadness on the first day of school before. Over the summer, I had them in my grasp, we floated and dived together and roasted marshmallows and made crazy plans. They got bored, found ways not to be bored and slid back into boredom again. The ups and downs of their lives over the summer were directly observable by me, but they can't live in there forever. Now they have left the jar, they have been released into territory I can't always know or understand.
They'll return at the end of the day full of stories and information from that tall grass over there.