بسم الله الرحمن الرحيم
Masha Allaah this is the sixth sitting.
Here are some of the benefits.
The sane resident Muslim must fast if he is able to.
The prepubescent child: it is not obligatory for him to fast, but his guardian should command him to fast to train him.
The insane person, one who has lost his mind, his fasting when lost his mind is invalid.