At the First Council in Nicaea, Holy Hierarch Saint Spyridon gave the Arians a graphic proof of the Unity within the Holy Trinity.

He took a brick into his hands, and squeezed it. Immediately, flame shot up from it, water poured down from it, and clay remained in the hands of the miracle worker. Then Saint Spyridon said, “Here are three elements, but one brick. So it is with the Most Holy Trinity: Three Faces, but One Divinity.”