But being bitten by a tiger is not good. It is mentioned in Romance of the Three Kingdoms that Ma Chao, a general of the Five Tigers, dreamed that he was bitten by several tigers in the snow on the night when his father Ma Teng was killed by Cao Cao. Although the Three Kingdoms are novels, they are based on historical facts and have certain authenticity.
Finally, it is reasonable to extend the sentence "thinking day and night", but I think it should be treated differently. Things like beasts, dragons and snakes are rare in daily life, so we should be able to foresee something. But if I have a nightmare, to be honest, I can't solve it for the time being.