Premanand Maharaj Ji
How can I stay content when life is painful or I am insulted?
See hardship as Bhagwan's blessing
Contentment means having no wants from anyone and staying at peace in whatever situation comes. A devotee can bear pain and insult by trusting that Bhagwan is working some good for us.
Being content in whatever situation you are in is the mark of a contented person; the limit of santosh is to have no wants from anyone.