Faravahar is a very old and important symbol from Persia. It looks like a stick figure with wings and a circle at the top of its head. The circle is like a halo and represents the idea of being connected to God. The wings represent freedom and the ability to fly.
People in Persia would use the Faravahar symbol on things like coins and buildings to show that they believed in the ideas it represents. It is often associated with the religion of Zoroastrianism, which was a very important religion in ancient Persia.
So, just like how you might wear a necklace with a cross on it to show that you believe in Christianity, some people in Persia would use the Faravahar symbol to show that they believed in the ideas of freedom, connection to God, and Zoroastrianism.