But apart from sincerity, following the correct procedure is also important. Chuo Ko-hua says that according to old custom, one should come with a sincere heart, and should first abstain from eating meat and strong flavored foods, refrain from indulging one's desires, and purify oneself by bathing. But today people have abandoned this practice.
卓克華說，若依循古禮，求籤前需誠心齋戒禁慾沐浴，但現在的人已經省掉這道程序了。