This is sort of exactly what I'm exploring in my science fiction story atm
The first act is 'hard' sf or whatever about humans across space largely living under a hybrid form of feudalism and unbridled capitalism that reaches nearly the periphery of the two+ galaxies humankind has stretched across. The story revolves around a youth of nobility and the fall of space capitalism, but the plot and action is largely driven by the first appearances ever of super/magic powers and the MC's interactions w folk who have them, all leading to the expansion of the sf world to include a knownly 'heavenly realm' and even an annexation of the human realm by the King of the Demon Realm.
Yet the heavens and demon realm aren't really related to magic as much as they are matters of life, death, and temporal distortion. Magic only comes as the result of time travel, by which an individual is carried across worlds to an 'other' and not a next world that's essentially fantasy. It's an entirely flat world where all the matter in a universe like ours is instead one world with one sun and one moon, and time is entirely linear, so instead space becomes variable and nonlinear. All the regions of the human realm are mapped out as kingdoms on a small part of what's really an unimaginably large continent, but what's between and around them constantly shifts and distorts.
Only memories don't carry between worlds, so one returns to the familiar, sci fi world with no clue how or why youre a god now/have magic powers. I guess you essentially reposition yourself in altered (alterned?) space and transmit back elsewhere in time, although its not necessary. Its more like a function of two worlds achieving doubleness.
And all of this drives the plot through its creation of the real main villain. Capitalism collapses and the age of man in the stars end, but before the King of the Demon Realm can crush his unexpected opposition on Historic First Corinthians, the moon rips open into the first blood moon of the hunt, in which Laic accesses every moon so that they might be gates for the undead to cross over through at every respective cycle's new and full moon. It's the first endless human greatwar, and now the remaining armies of man have moonwide torrents of skeleton warriors and the superhuman folk have fodder they can decimate until they realize, despite the skeletons' frailty, the undead legions of Laic are strong enough to sink their blades into superhuman flesh with a good hit.
With only one moon in the flatworld world, however, Laic has less than a fraction of the reach, so instead of a full skeleton warrior build, Laic there has to distort the living into horrible ogres, trolls, etc.
And in the fantasy world, humans and the undead live in hopefully unimaginable harmony, which is the foundation of any sort of society and natural order the ppl there have.
All of this to answer the question how could a super saiyan land on Dune?