What do you pray for your father?

I suggest you be a good son first. Parents don't care how much material rewards you give them, what's more important is spiritual. The most important thing is to care more about him, be considerate of him and warm up the old people. Otherwise, what's the use of chanting for 24 hours? If you can pray for the elderly on the basis of taking care of your father, so much the better. May all parents in the world be healthy.