Such sayings may seem unfounded in this day and age, but in the past people always considered family status first and the "eight characters" (giving precise time and date of birth, including the birth sign) second, in matrimonial matters. Suitable marriage partners would be considered and ranked by the parents, and the young person's destiny would eventually be settled on in this way.
種種說法，現在看來都有些無稽，但在以前，古人終身大事一看門戶、二合八字（包括生肖），村、城中幾個合適的人選由父母排列組合一下，一生命運就告定案，影響力極大。