Reptilian or other spirits in the ethereal realm super impose themselves on human beings through the bottom three chakras of those that have purposely or unwittingly allowed them to take control. People often say meditation is healthy for you, well you better not do it if you are in a toxic mentality or a toxic environment or something might jump through that you cant handle. I'm speaking from personal experience. Do not attempt to meditate if you are isolated from others or have filled your mind over the years with horrific imagery from movies, porn, video games, etc...thats my advice. A classic example of a person's face shape shifting due to this possession process would be lady gaga in this video, go to 3:00: https://www.youtube.com/watch?v=hpiw3cDWmvcShe started talking about her obsession with meditation 3 years earlier and I think there is a link. You do not want these entities to take you over, it causes your brain to sow shut in the back and you can no longer feel high vibrational feelings like love, euphoria or peace.