Final answer:
The 'heavenly journey' type of ancient apocalyptic literature involves a guided tour of the heavens or afterlife by a supernatural being, distinct from other forms where visions of future history are presented.
Step-by-step explanation:
In the context of ancient apocalyptic literature, the "heavenly journey" type involves the prophet or author being taken on a heavenly tour by an angelic companion. This is a distinctly different motif from other forms of apocalyptic writing where a symbolic vision representing the future course of human history might be presented.
In the heavenly journey narratives, like those found in 1 Enoch, the Apocalypse of Peter, and the Book of Revelation, the protagonist is typically guided by a supernatural being and is shown various aspects of the afterlife or heavenly realms, often including moral or eschatological judgements, but without personally dying for the sins of the world or always meeting God and Satan personally as part of the journey.