Beth uses her seizures and falling as a metaphor for the difficulties that people face, and enjoins her friends to see people's falls (in the sense of adverse circumstances) as an opportunity to be the hero we imagined ourselves as children.
I fall quite often. It comes free with the bad hips, bad knees, bad ankles and bad feet. What I have learned is there is no point to fighting it. When I feel me going down, I bring me down instead of trying to stay upright. People often think I just suddenly decided to sit. Indeed, I did. I decided that suddenly sitting would be better than suddenly slamming into the floor. Gravity is a harsh mistress.
It's peculiar who will stop to help and who will make it a point to not see that any help is needed. Some people are terrified to acknowledge that others are having difficulties, even small ones. To notice the needs of others would force them to have to consider helping. To refuse to help would make them Bad People. But to offer help would undermine their autonomous self-image, since in the act of rendering real assistance, the helper and the person being helped become one in their goal. And some people fear being helped for exactly that reason, that loss of the illusion of independence. I mean, it is an illusion. We are all interdependent, we truly cannot live without each other.