Why did Xu Xian use the almanac to settle accounts?

Xu Xian used the old almanac to settle accounts, because he thought that the good and bad luck in the old almanac should have a certain influence on people's fortune and decision-making. In the traditional culture of China, the lunar calendar is regarded as a tool to predict good or bad luck. People often choose the right time to make important decisions according to the taboos in the lunar calendar, such as getting married, moving and opening a business. Xu Xian hopes to choose an auspicious time to refer to the old almanac to handle the accounts, so as to obtain a good result. This answer is for reference only. Don't be superstitious