《搜神记·卷四》
府君说： 活人和死人属于不同的世界，不可以互相接近。我倒不是不肯帮忙。 
府君曰： 生死异路，不可相近，身无所惜。 
The Prefect said: The living and the dead belong to different worlds, they should not approach each other. It's not that I don't want to help.