Just because it's generally referred to as a masculine energy doesn't mean that it's just for men. Both men and women have their male and female aspects. We all develop, and have the ability to access, them both.
The sun symbol features in many traditions, and some depict it as the symbolic centre of heart of the universe. Although viewed as a male principle in the majority of traditions, in Germany and Japan, as well as in tribes in some areas of the Celtic world and Africa, it was, for a time, viewed as female. The connection with the sun has led to many people worshipping its energy and vitality, with Peru, Mexico and Egypt being most famous for their sun cults.
As far as icons of the sun go, they are varied throughout the world. The Peruvian's depicted it in human form with a golden face, but it's also commonly shown as a gold disc, a rayed disc, a half-disc with or without rays and even as a wheel or spiral. Likewise, the colours used vary, from bright and golden yellow, to red, bronze and terracotta.
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