This is the house of partnerships, the most important partnership is marriage. Until the 7th house in Vedic astrology, the focus was on the individual. With this house, the focus shifts from self to the other. This house is just opposite the ascendant. The first house is self and the seventh house is partner, together they complement each other and make a whole, like Yin and Yang.
So seventh house in astrology represents what you are looking for. Everything related to marriage is governed by this house. Your sense of attraction to the opposite sex, desire to have a partner, need to commit, sexual fantasies, passion, possessiveness, and level of understanding are all governed by the position of planets in the seventh house.
This house also relates to your ability to have children. The seventh house in the horoscope also relates to problems and disinterest in carnal fulfillment, illnesses of the reproductive system, impotence, and progeny problems. The reason why you indulge in a partnership is also apparent in the seventh house. Is it for love? Money? Social pressure? Practical reasons? Or to fill the void in your life?
The sense of cooperation and purpose is important to the seventh house. By cooperating and adjusting, we seek to realize our purpose, accomplish something like happiness, success, profit, and satisfaction. All sorts of partnerships come under the domain of the seventh house, not just marriage.
These include business partnerships, relationships with clients, contracts, negotiations, agreements, and so on. The kind of relationship you share with your co-founder is governed by this house, who gets a bigger slice in profit is also ruled by the 7th house in Vedic Astrology.
Your relationship with everyone you enter into a contract with is also governed by the seventh house in the horoscope. Whether all these partnerships enrich your lives or cause your downfall is also assessed by the planetary position in the seventh house.
The seventh house in Vedic astrology also deals with the darker side of our relationships, the partnerships we form. Legal battles, divorce, quarrels, enmity, and fines also fall under the domain of this house. Your reaction to these adversities influences your relationship with the person and on a more global level in mundane astrology, it can lead to wars.
In Mundane astrology, the 7th house in the horoscope controls matters related to treaties, alliances with other countries, foreign affairs, law, international conflicts, foreign trade, etc.
Known as the Kaletra Bhava in Vedic Astrology, this house is ruled by the Libra sign. Planet Venus is the natural significator of this house that also signifies love, romance, and sexuality.
It governs several body parts including the kidneys and lower back.