You are going by modern mythology instead of what is in the text.
Numbers 12:6 and other places. However, there was to be a removal of that communication, that learning, loss of prophets for a long time in history. This is why the second comming is important. As the text is sealed, and those seals will be loosened (so don't look for a full explanation even from the prophet sent), how one learns in the lucid dreamstate is also sealed--it too is a langauge.
Dreams, specifically lucid dreaming. Visions happen when you are awake and concern the immediate.
A deep sleep upon mankind, a darkness, a famine of the word. Even Christ was sealed. No one really knows what he was about, and that too shall be revealed.