We were in heavy waves, and the body surfing was great. He was 10. I wanted him to know what it was like to get past the kiddy shallows. I wanted him to want to be strong by knowing his own strength, the strength of the world, and all that he had to grow into. So, we went far out to where the waves were their biggest, and there was a riptide, pulling at our feet. When a pair of waves would crash in, the surface of the water was moving toward the shore while the bottom layer was retreating into the sea.