What Are the Two Main Categories of Apocalyptic Literature?

When you're looking at apocalyptic literature, there are two main categories. There's the heavenly journeys in which a prophet is kind of taken up and given like a personal guided tour by an angel. And then historical sketches, which I think is what Daniel and Revelation are with the mystical visions and symbolism. Do the two categories have different purposes? Or is it the same purpose? Just different ways of fulfilling that? Yeah, no, that's another really good question. And it's a, another difficult one. You know, at this point, we're talking about literary work. We're talking about books that embody an apocalyptic point of view.