The basilisk (also known as a cockatrice) is a mythical animal that has the head and claws of a bird, and the body of a serpent. It was considered the king of serpents, and it could kill anyone with a mere glance. In Europe it used to symbolize lust, depravity, illness, and disease. Its gaze would kill anyone unwise enough to look into its eyes. In Christianity, the basilisk was a symbol of the devil. Dreaming of a basilisk is a sign that you're being tempted to do something you know you should not do. Whatever it is, it goes against your essential nature, and you'll be disgusted with yourself if you succumb to this temptation.