Articles relating to perceptions of religious imagery in natural phenomena. People have been found to perceive images with spiritual or religious themes or import, sometimes called iconoplasms or simulacra, in the shapes of natural phenomena. The images perceived, whether iconic or aniconic, may be the faces of religious notables or the manifestation of spiritual symbols in the natural, organic media or phenomena of the natural world. The occurrence or event of perception may be transient or fleeting or may be more enduring and monumental. The phenomenon appears to approach a cultural universal and may often accompany nature worship, animism, and fetishism, along with more formal or organized belief systems. Many religious believers view them as real manifestations of miraculous origin; a skeptical view is that such perceptions are examples of pareidolia.