A coincidence can be meaningful without being causal.

Two things can line up in a way that genuinely matters to you, that changes how you see a period of your life, without one having caused the other. Meaning and causation are different claims, and conflating them leads either to dismissing something significant or to building beliefs about mechanism on nothing.

You can let a coincidence move you and still not treat it as proof of anything. Notice it, keep it, tell the story if you like. Just be careful about the decisions you make on the strength of it, and about the certainty you attach to what it explains.