Have you ever just ran until you couldn't run anymore, for reasons other than physical activity itself? There's a point at which you feel you could go further,

Have you ever just ran until you couldn't run anymore, for reasons other than physical activity itself? There's a point at which you feel you could go further, and in fact know you can, but you choose to stop because the discomfort and exhaustion at that point outweighs the purpose of the run. I can imagine and speculate this is what is meant. The dancers exhausted the point of the dance, and then would fall to the ground for quickest relief, just as you might throw yourself onto a bench after a spontaneous, excess-driven sprint.