In astrology, each zodiac sign is believed to be ruled by a particular planet, which influences the personality traits, tendencies, and characteristics associated with that sign. The zodiac sign Leo is ruled by the Sun, which is the center of the solar system and the most important celestial body in astrology.

The Sun is associated with the principles of vitality, creativity, self-expression, willpower, and leadership. People born under the sign of Leo are said to embody these qualities to varying degrees, depending on the other planets in their birth chart and their individual life experiences.
The Sun is often referred to as the “heart” of the solar system, and it represents the core essence of an individual’s being. In astrology, the Sun is associated with the concept of “ego,” which is not necessarily a negative or selfish trait, but rather a person’s sense of self-worth, identity, and purpose. Leos are said to have a strong sense of self, and they are often confident, outgoing, and assertive in their approach to life.
Leos are also known for their creativity and passion. They have a natural ability to express themselves and are often drawn to the arts, music, theater, and other forms of creative expression. Leos are also said to be natural leaders, with a strong will and a clear vision for their lives. They are often attracted to positions of authority and enjoy being in control.
Another key characteristic of Leos is their generosity and warmth. They are known for their big hearts and their willingness to help others. Leos are also loyal and protective of their loved ones, and they will go to great lengths to support and defend those they care about.
In summary, the zodiac sign Leo is ruled by the Sun, which represents vitality, creativity, self-expression, willpower, and leadership. People born under this sign are said to embody these qualities to varying degrees, and are often confident, outgoing, and assertive, with a strong sense of self-worth and identity. They are creative, passionate, and natural leaders, with a generous and warm-hearted nature.