The beggar is pointing his forehead up at you, his feet trapped in the ground. What diabolical scheme are you planning with this poor beggar you trapped? Turns out, you're planning to copy him to have your own version of him.
To remember the reading しゃ, we use the word "shaman".
You finally decide on how you're going to copy him. You hire a shaman (しゃ) and have the shaman perform a sacred shaman cloning ritual.