When the weather gets warmer in spring, flowers are in full bloom, which will naturally attract butterflies.

Metaphorically, if you have a good moral character or a strong ability, someone will naturally follow you. It comes from the online article "When a phoenix flies, a butterfly with flowers will come", and the author is indifferent.

Morality, that is, moral quality, also known as virtue or character, is a stable tendency and characteristic that individuals show when they act according to certain moral behavior standards. Virtue, in essence, is the product of internalization of moral values and moral norms in individuals.