Destiny involves 'others' in some capacity, and their whole sense of meaning in life pivots around these relationship connections, and often it is appropriate for the person to seek a vocation in which one can work with others, where these relationships constantly demand growth. The individual might be suited to those fields of work where direct and deep contact with others - for example, in the fields of counseling, education, psychotherapy or teaching would involve the Sun in the everyday challenges of human relationship. Close friendships, love relationships or marriage is also going to prove deeply important - not only from the perspective of personal happiness, but because it seems the person needs the catalyst of others to truly develop their own potentials. In fact, the entire spectrum of human relationships is the landscape in which the person is meant to explore - and the more the the individual with the Sun in the 7th house develop their contacts with others, personally and professionally, the happier and more fulfilled the type is likely to be. The need for self-development is crucial wherever the Sun is placed in the chart, and the need to relate to others is extremely strong.
The Sun above the horizon represents cooperative relationships and the identity, purpose and destiny of the individual is discovered in the seventh house. This position can indicate someone who is constantly involved with people in areas such as social work, public relations and one-to-one interaction. Yet, those with Sun in the seventh house must also learn to value the development of their own creative expression, as much as the individual values others, and learn not ’give away’ their power. Sometimes problems arise in these types when they choose a partner who is important and notable in some way, and who raises their public profile, but it also means the individual depends on the other for public recognition. The need for social prestige and community authority is also a feature of the Sun in the 7th house and in many ways, this is how their mark on society is made.
The power of social influence is important and the person is often able to share unique insights into human relationships. All relationships work best when there is equality and shared focus on achieving individual goals. It is also likely that, success comes through partnerships as the seventh house is where we seek to reinforce our sense of self. At worst, those with the Sun here need others in order to feel whole and complete, and often the identity is weak in the first half of life and in later years they recognize the importance of developing as an individual.
Success is rooted in their ability to interact with others and discover their own value through the relationships he forms. This involves much more than personal relationships, and may take the person into the public arena in some form. Other people, individually and collectively are the driving force behind their sense of individual destiny. The individual feels most alive, knowing their life has a sense of meaning and purpose, only if he is actively involved with others improving their lives, leading and sharing, and through these efforts helping others discover their unique gifts and talents.
Jung had the Sun placed at the Descendent in his birth chart. This means that he found his sense of meaning in life through working for the welfare of others. The Descendant of 7th house cusp symbolizes one's interaction with others, and many people involved with teaching and healing have this placement. Freud also had it. On a deeper level the Sun in the 7th house means that one’s individual creative efforts may have a powerful effect on others. There may also be the need to found some school, group or organization to carry the “message” or ideas to a larger audience. The 7th house is a rather public house, and people with the Sun placed here do not tend to hide their light under the proverbial bushel” -Nostradamus: The Millennium and Beyond
A person with Sun in the 7th house often gains public support and recognition and serves the public with great dedication. Typically, the individual needs to be involved with people to fulfill their purpose.
7th house Suns usually start off looking for the light in a partner. Then something goes wrong, and they have to recognise that, even if others are the most important thing in their lives, they must find purpose within. They cannot go cap in hand begging the partner to give them their sense of meaning and worth. The Sun needs to shine and give generously, but it must first discover an inner, individual light. The light can’t be borrowed. An 11th house Sun cannot go the group and say, “Love me. Validate me. Make me feel I have a reason to be alive.” It must create its own light and then offer it to the group. At certain points in life there is usually a terrible struggle around the house in which the Sun is placed, when we realise that we have to do it ourselves. As I mentioned earlier, Apollo is a lonely god.” - Apollo's Chariot: The Astrological Sun