Augur of Heaven III

Indeed, in his studies about various realms, he had learned that there existed various realms that were solely and specifically for beings so weak in power, that what humans considered as the mortal realm was akin to an overpowered Deity to them. Microscopic realms were not called so because they were tiny, though that was usually the case.

Instead, they were realms in which there existed races so weak, that only after attaining multiple realms of power, and overcoming something akin to a tribulation, could they enter normal realms by attaining powers akin to a mortal.

The races that existed in such realms were generally so weak, and so low on the Cosmic Ascendance Spectrum, that even normal humans were like mythical dragons to them.