求翻译：盖以镜子反映外界人事，卧床时于镜中见之，易致心神不宁；或于镜中照见自我，亦易为之愕然，故以避之为宜。是什么意思？

Cover to mirror reflecting the outside personnel in bed in the mirror when you see, easy to uneasy; flick or the mirror self, are easy to surprise, to avoid it.