👉 Brainstone is a type of stone that is commonly found in ancient or medieval architecture and is believed to represent the heart, which is said to be located on the left side of the brain. The term "brainstone" was first used by the ancient Egyptians and is often associated with the belief that the heart is responsible for regulating blood flow through the body. In some cultures, it is also believed that the stone represents the soul or spirit within the heart.
