There is a term called Pareidolia which is a psychological phenomenon involving a vague and random stimulus (often an image or sound) being perceived as significant. Common examples include seeing images of animals or faces in clouds, the man in the moon, and hearing hidden messages on records played in reverse. The face on Mars is another typical example.
When I first saw the images below I was thinking of the term pareidolia, but this seem like such a nice example I thought it was worth sharing. Happy Valentine’s Day.
heart-shaped nebula IC 4628 in Scorpius
LRO Image: Intricate young ejecta blanket in ancient Murchison Crater