What if my father is superstitious?

This situation should still be due to your father's inner insecurity and anxiety. At this time, you can't instill a scientific explanation into him, and even have disgust and resistance. Fortune-tellers always say ambiguous words, so that many things that happened later are easily related to his "fable" and full of deceptive tricks. You should find the source of your father's fear and worry (communicate with him patiently and calmly if necessary, and don't refute him abruptly), try to eradicate the source of those negative emotions, and then tell him that although man has life, he can conquer nature and lead a better life because of scientific progress. If you can find some defects and mistakes of the so-called Daxian, you can also expose them to your father at an appropriate time to make him start to doubt Daxian himself.