There are millions of them. A MURA-MURA is the ghost of your great-great-ancestor who hangs around watching over you instead of enjoying a peaceful retirement.
Advice or assistance may be dispensed, but treat all offers cautiously. Being dead does not necessarily improve anyone’s accuracy or wisdom.
MURA-MURAs are known elsewhere by other names and may even be mistaken for deities. You may pray to them or worship them if you really feel the need. Just don’t blame us for anything that happens.