(colloquial) to get confused

(literary) to enlighten; to impart rudimentary knowledge to beginners; to initiate / (literary, historical) to teach children to read and write / (literary) to lift a blindfold; to make someone recover their eyesight / (literary, figurative) to be extremely easy; to be a piece of cake

(～卦) A combination 二上四中三下 in the Lingqijing.