>>717359874
Beware of the things those responding to you are saying. No they don't deny the holy trinity, I don't know how someone could even construe that. What they deny is the catholic doctrine of the fillioque.
If you really want to understand it, I can't be very much help outside of just suggesting to investigate it yourself. There are really good channels on youtube, Father Spyridon, Orthodox Wisdom, Orthodox Talks, and more. They are a lot more mystical than other denominations and it's the least of the world of them all I find (but discern that yourself). I would recommend looking into it. Not to talk ill of other denominations or suggest there isn't authenticity in it, but the Orthodox seem absolutely unrivaled to me, as far as that goes. They seem the most serious of all of them. The orthodox anime girl in that image is supposed to be a schema monk by the way. That's an interesting thing to look into if you're curious.