The disabled, mentally retarded and mentally ill who are alive now, please explain with religion why they came to this world like this.

If you get a reward, you must have done it. God treats everyone fairly, neither favoring anyone nor mistreating anyone. The key is what you do. My life is in my absence! God just gives it back to you according to what you did before. If you save money, you will pay it back. If you owe money, you claim your debt. Although it seems that a person's illness and mental retardation are caused by the environment, it is only a help, and the fundamental reason lies in himself. Therefore, if you want a good fate, you must do good things yourself.