I'm having a kind of similar problems maggiesmum...I had my oldest person in the village become pure of mind and body, and started him purifying the tree. Just as he got to the fire with the bug, he dropped dead of old age. Since then I can't get ANYONE to be pure of mind and body at the same time. If they're clean, they lose it as soon as they start meditating. If they're pure of mind, they lose THAT as soon as I drop them in the soapy water.