In ancient Egyptian temples, the "reproduction" significance of the T-shaped cross pattern is closely related to the Pharaoh. It was particularly emphasized in alleviating the pain of the Amana stage. Some of the sun's rays in ancient Egyptian paintings have T-shaped cross symbols at their tails, pointing directly at the noses of Pharaoh Okhennathan and his wife Nefertiti. This kind of sacrifice to noble nostrils is called "breath of life".
The ancient Egyptians believed that this symbol had mysterious energy and could give life something. Different symbols are considered to have different divine powers. Because of the natural and inner strength of this symbol, the T-shaped cross has become a common magic icon and is widely used as a talisman. When the T-shaped cross is colored, the power of protection will converge on the wearer. The red T-cross represents life and rebirth, the blue T-cross symbolizes fertility, the green T-cross is related to physical recovery, the white one is used to reflect the purity of religious ceremonies, so it is often used in ceremonies, while the black T-cross represents resurrection.
T-shaped crosses are still very common in Christian churches in Egypt. They call them "knots" (Crux? Ansata)