The yin in the grave is too heavy. What does this mean?

First of all, Yin Qi (ptomaine! ) Contrary to and different from the sun be the spirit, Yin Qi probably said that dirty air is similar to miasma (* _ *) Hee hee ... Yin Qi has a great influence on people's health, and advised not to rob the tomb! ! ! I don't have black donkey hooves and glutinous rice to help you detoxify the body.