Raw visual mirages are the formless thoughts of an Inhabitant taken physical form.
They're very malleable and typically move in blobs. Think like the blobs of a lava lamp.
Different mirages from different Inhabitants can even be combined and controlled.
Concentration and a clear idea is the key to creating a mirage with a form. The more there is, the more realistic the mirage will be.Inhabitants with Mirage Types 1 and 3 are able to create visual mirages.