@rohrkrepierer@merovingian.club @Mac_CZ
Not to access it- but artificially create it. Using the runes to cast a spell to open a portal to an alternate reality where the casters imagination can be made real to the eye, but not to touch. Highest-level illusionary spell for the most adept and solitary hermit-mages that mostly lurk in the darkest caverns for days on end.... Never to touch grass... Or another living being.