Something too strange for the human mind to comprehend without breaking. Something or someone is too imperceptible to see the true form of, and should someone else attempt to understand it, they will be driven to insanity and/or terror due to their otherworldly nature. Imagine if some non-human entity, became a three-dimensional living entity with self-awareness and consciousness, that wanted to sit down and have a lovely little chat. What would it look like? Like a surprisingly feminine.