First, we have to look at where this word comes from. Originally this word referred to putting something under a spell. An enchanted weapon would hold magical powers and probably hold great mystery. If we were to disenchant this weapon we would remove not only it’s power but the awe that others hold in looking at this magical weapon.
Over time, the word enchanted also came to mean delight or charm. An idea or circumstance might fill us with joy in such a way that it is almost magical. If the circumstances change and that enchantment is stripped from us we would be disenchanted. One cannot he disenchanted over something if we were not first enchanted with it.
I was enchanted by the majestic hills and lush green of Ireland. I was filled with wonder. Once I stayed awhile and learned of the various social problems, that wonder faded and I became disenchanted.