That just reminded me of something. There was a short clip in a video I saw the other day where a man was showing drawings of triangles/pyramids.

He then took a long-based (short height) triangle and removed the base, leaving the 2 sides. On each end he put "O" and on top "H." He went on to explain that this is the structure of water (H2O). Water is life.

First time I ever saw or heard an explanation like that. Unfortunately, that was about it for the clip. Would be great to see the entire thing.