What is sanity and insanity? If you are insane, do you know it? What is the line between sanity and insanity?

Sanity is just having the same mindset as others, Society determines whether a person is sane or insane.

Explanation:

Sane: Free of mental illness and in a reasonable state of mind, mentally healthy.

Insane: mentally deranged, insane actions. They can have Paranoia, Distrust of humanity, they can be Vengeful, etc ...

How to know if you are insane or turning insane: Sleep or appetite changes, Mood changes, Social withdrawal and loss of interest in activities previously enjoyed.