阴阳家之说。谓年、月、日之辰皆有六合，与六合相冲之辰亦有六，是为六害。如正月建寅，与亥合，与巳则冲，故寅与巳为害；二月建卯，与戌合，与辰冲，故卯与辰为害。余类推。年、日之六害亦仿此。

the six evils (prostitution, pornography, traffic in women/children, illicit drugs, gambling, and superstitious practices)