[TOMT][CARTOON] fantasy cartoon from the 70s/80s

It's a cartoon where a young boy has some sort of a mission. He's some kind of chosen. The main plot, as I remember it, had something to do with several wizards (sages? scholars?) who were entrapped or maybe transformed into some creepy forms. In the finale, these wizards turned into some flashy figures (as I they were made of light) and they operated a machine which was utilized to stop the main antagonist. Also, one of these wizards was present in many episodes. He was a blind, old man. I think he had a daughter who was a friend of the protagonist.

I guess it's a cartoon from the 80s, but I watched it in Poland in the 90s as a kid and I have no idea how old it might actually be.