to change one's mind; to go back on one's word

divinatory diagram; one of the eight divinatory trigrams of the Book of Changes 易經|易经[Yi4 jing1]; one of the sixty-four divinatory hexagrams of the Book of Changes 易經|易经[Yi4 jing1]

to divine using the eight trigrams

to tell sb's fortune using divinatory trigrams

fortune telling