There’s no rhyme or reason to/for something

Pro Tip 1/3

Used to express confusion about why something happens without logical explanation.

I can't see why she's leaving such a good job; there's no rhyme or reason to it.

Pro Tip 2/3

Though it suggests randomness, it isn't strictly used in a negative sense and can denote wonder.

The artwork was strange, a mosaic of colors with no rhyme or reason, yet it was captivating.

Pro Tip 3/3

Remember, it's not about poetry or reasoning literally; it's a metaphor for lacking logic.

The plot twists in the movie had no rhyme or reason, leaving the audience confused.