Childhood Friend

you having a dream of a little boy and under a tree by a large rock, The boy and girl seem sad about something, they write something on a piece of paper and they put it in a shoe box and buried the box by the large rock. they turn and they seem to be speaking but you cannot hear anything they say, as they about to pinky promise you wake up, you can be either the boy or the girl but you're an adult now living on your own.