Dream of kids

I was with two other kids from my Jazz Band class and we were outside doing parkour on these stacks on cinder block. In between the stacks was nothing it was all dark. The three of us had our book bags on and mine was really heavy and it was dragging me down and i was also carrying my grey jacket and i left it on one of the stacks and when i got to the check point i noticed i didnt have it but i was sad