eh, ni-, -an
‘rituals’ to be practiced.
Compare: Arabic amal , "to practice religious duties".
What [ritual] is being practiced by you, [which is] the reason [that] you are not eating meat?
What ritual are you doing, so that you are not eating meat?
If the [ritual] is not practiced by you day and night, [it] will not be effective.
If you do not do the ritual day and night, it will not be effective.