The Sun is the center of the Solar System. The Sun is the center of oneself, in the same way. The natural Sun gives light to the earth.Our Sun is our most basic drive.It is what we KNOW as our “self”. When one puts one’s foot on the gas pedal, one would be igniting one’s Sun. One’s Sun is one’s powerhouse. It is one’s ego. It is one’s thrust.That is why we can pick up a person’s Sun sign. If I honed you down to “you”, it would be your Sun. Your Sun sign is the you of you. Study it, if you have a weak ego. Fortify the strengths of your Sun. Try to accept the weaknesses.