When a monk came to say good bye to Chao-chou Tsung-shen (778-897), a brilliant Chinese Ch'an master.
-Where will you go?
The monk answered:
-Any place where I can learn Buddha dharma.
Mu means no ... but that isn't what we are searching for .. The meaning is more in the context of its usage. So, to take it out of context makes it usefulness lacking. Please re-evaluate you understanding before putting such crap out ... hahahaha