Time is so old that it remebers that. Arnold Schwarzenegger could lift 1000 lbs off of the ground when he was at his peak. An ox can drag a 4000 pound plow through the dirt, which is roughly equivalent to lifting the plow. So Arnold Schwarzenegger is about as strong as one ox's leg. But you can't even really sit because you have no discernible anatomy.
Rocks are like that.
Think of a hill compared to a mountain. The top of the mountain would seem to fly compared to the top of the hill. The bird is the top of the mountian, but just the top, without anything underneath. We are all just hills compared to the birds. Think of it along those lines.