THE SECRET MARRIAGE, by Sting

Sun conjunct Moon
When the Sun in one chart is conjunct with the Moon in the other, there is an extremely strong indication of a powerful romantic relationship and potential for marriage. The Moon person is emotionally in tune with the Sun person. This relationship works best if the Sun person is naturally in a role of leadership. In a marriage relationship, this aspect shows a strong sexual attraction. In this aspect, there is some tendency for the Sun to dominate the Moon to a degree. In any event, the conjunction makes two people fast friends with a deep mutual understanding and appreciation of one another. The spirit of cooperation is significant.

Sun sextile Sun in synastry:

This aspect is a very supportive one in any chart comparison. It helps iron out other differences. There is a great deal of compatibility between you, for you understand and are in harmony with one another's basic needs, aims, and approach to life. You build up, encourage, and affirm one another's worth and self-esteem, and you find one another's company very comfortable and natural. This is a mutually beneficial relationship.