Disclaimer: I am still finding my way in life, so take this theory with a grain of salt.
New age movement, claim everything on earth is actually a hologram of the universe, experiencing itself.
So perhaps, just being in close proximity with another coral, the hologram frequency was now more in tuned.
Why would the frequency of the healthy one win over the frequency of the non-healthy one though? I assume both would have their own frequencies, are you implying there's an order or tendency across frequencies?
You might be interested in Catholic theology + philosophy. It takes a LOT of background, and a lot of time to accumulate it, but you clearly have some already, and once you get comfortable with reframing terms that have a lot of societal baggage attached to simpler, honest understandings (for example, God, as a sky dude vs the universe as a mind), you can go so far.
Since you mentioned you’re still finding your way in life: please be aware that the appeal of a lot of new age and „woo“ is that the act of noticing a pattern in nature, that feeling of „aaah NOW it makes sense“ is inherently pleasant and can become something you chase like a drug. These frameworks or schools of thought can provide a steady source of that feeling without necessarily being tethered to reality at all. Kind of like acid - very fun at times but catastrophic if you make it a core part of your identity.