What are icons and what are they used for?

Definition of icon

Tree leaf icon animation on white background. plant animated growing icon. symbolism of nature and sustainability. animated reuse plant icon reuse plant environment. 4K motion video.

Our Lady of the Sign ☦️💜✝️ - This icon is rich in symbolism and meaning. Mary's hands are raised in prayer in the orans position, and Christ appears within her, in a medallion over her womb. He is not shown as an infant, but with a mature expression to reveal that He is both fully God and fully man. The icon refers to the prophecy in Isaiah: “Therefore the Lord himself will give you a sign. The virgin will be with child and will give birth to a son and will call him Emmanuel.” - Mary is the ful