Thread:Jester of chaos/@comment-29644557-20180420221412/@comment-26120048-20180420231734

The only in-game description of Morpha I found is "This ice is created by an evil curse... The monster in the Water Temple is the source of the curse. Unless you shut off the source, this ice will never melt".

While I personally don't see that this gives Morpha sentience or a personality (sounds more like it is the natural origin of the curse and is simply an obstacle placed by Ganon), I guess it can be viewed like that so I just leave it to the admins to decide.