What does it mean to fantasize about a white horse in red?

It means: I want to ride a white horse in red. It means to get rich.

Fantasy dictionary explanation:

Based on the ideals and aspirations of society or individuals, imagine something that has not yet been realized: scientific fantasy; Fantasize about becoming a citizen on the moon.

2 such an imagination: a beautiful fantasy.

Yes, and:

(1) Repay at the same value.

② Repay the principal and interest on the principal.

Imagination: Also called "imagination".

1 cherish the memory; memory

(2) Still imagine.

Related idioms: dreaming of bubbles

[Idiom explanation] Buddhist terms. I feel that everything in the world is as empty as dreams, illusions, bubbles and shadows. Metaphor is an empty and easily disillusioned fantasy.

[Source of allusions] Chapter 61 of Cai's Biography of Yue Quan: However, I heard that the elder had spoken the word "dream bubble" and everyone chanted Buddha in unison.

[Synonym] Nothing is ethereal.

[useful] useful

[Emotional color] A derogatory term

[Idiom structure] Combination form

[Date of birth] Ancient times