yesterday on my way home i saw a child on a sled. his mother pulled a sledge and he had so sweethappy face!He laughed sincerely and chattered something funny without ending, seemed. of course, i wasn't surprise in this acting picture, but i wonder why do small children like so much be pulling on a sledge by their parents? because...i mean... kids usually are very dynamic and at the same time the situation requires quiescent mode (static rest). where is coincidence (balance)? as to me, i don't remember what acted me actually in this way too.