The Materialists

Due to the mastery which the Grey's possess over the vibrational frequencies of the cosmos, they can manipulate material matter, meaning they are supreme amongst the materialists, their physical bodies allowing them to phase through various forms of matter to inact their abductions of humans. This is why they can appear in the bedrooms of sleeping humans without opening doors or windows, with this in mind they can also do far more, including controlling everything from weather patterns through their advanced technologies, to even simple things such as changing material environments around humans to disorient them, or to make the environment more conducive to the needs of the Grey's themselves at that moment in time. These supreme beings can also change human minds through manipulation of the brain, inducing higher intellect, and even what may appear to be madness by other humans. Essentially, they can do as they wish to a degree which supersedes anything most humans could ever dream being possible due to their own individual spiritual condition.