I couldn't care less, I do not care at all

the monk is also king when his stomach is full, nobody care any thing except his own

It does not matter, It's nothing, No problem

an order of fakirs, monks or dervishes who abandon worldly possessions, ascetic

careless fellow who lost himself in divine love, mystic, the divine attribute, needless

someone who doesn't care much, a carefree fellow, an order of sufi fakir, monks or dervish who abandon worldly possessions, ascetic, careless