I’m reading The Transcendent Function by Jeffrey C. Miller, which talks about “Jung’s model of psychological growth through dialogue with the unconscious”. I came across a bit that mentioned the “otherworld”, not as a place, but as a perspective.
There is one universe, there is no “this world” nor “that world”. Just THIS world, lol. The world, though, isn’t just material, there are Other aspects to it, psychological depths. The Otherworld isn’t hidden behind/beneath/beyond this world, it is just the hidden aspects of this world. When we have glanced something of this hidden perspective connections can be made between things that rational thinking can’t make, intuitive leaps of consciousness we wouldn’t ordinarily consider.
The Otherworld is there with us. We just need to look within and develop “eyes to see”. ;)