One moment you're eating breakfast, the next you swear your toast has a face that's smiling back at you. Or perhaps you're daydreaming and you spot some clouds that bear an uncanny resemblance to your childhood pet...What you've experienced is a something known as pareidolia. It's our brain's weird habit of seeing meaningful images, patterns or faces where none actually exist. These "visions" can be creepy or utterly hilarious. So much so, that …