Neptune in Synastry

1st house :
This placement can indicate a psychic link as the intuitive perceptions and subconscious attitudes of the Neptune person can have a considerable influence on the expression and awareness of the 1st House person. If Neptune is badly aspected the Neptune person will have a detrimental effect on the psyche of he 1st House person. The Neptune person could encourage the 1st House person to be self indulgent and influence destructive habits such as alcoholism, drug abuse or similar habits. The 1st House person could regard the Neptune person as lost in a fantasy world. If Neptune is well aspected the Neptune person will improve the 1st House persons level of spiritual awareness. The 1st House person can gain in cultural, spiritual and intuitive insight through the association and help the 1st House person to be more positive and active in expressing there imaginative abilities.

2nd house :
Peculiar circumstances may affect the financial affairs of you both. If Neptune is badly aspected the Neptune person will be a subversive influence on the solvents of the 2nd House person and could lose money through many weird financial leaks. Often, the Neptune person makes expenditures without consulting the 2nd House person. With a badly aspected Neptune there could be fraud or dishonesty in business. Trouble can come through a lack of discipline. If Neptune is well aspected you can gain through business related to art, music, psychology or other business operations requiring imagination.

3rd house :
indicates creative conversations but also some possible confusion or misunderstandings in which neither one of you may address immediately which leads to even more confusion. The Neptune person tends to communicate in a more colorful, sensitive or even romantic way however if the house person is more pragmatic or analytical the conversation may be confusing. However, it is not necessarily what is said that causes the problem it’s more about what is not said, or what was vaguely expressed. This can indicate a psychic connection to a certain degree as well with your Partner. The Neptune person may also inspire the house person or open them up to more spiritual matters.

4th house :
You have strong emotional psychic and psychological interactions, especially in family and domestic relationships and family members with this combination have a karmic link. The Neptune person will have a powerful but subtle influence on the emotional habit patterns of the 4th House person. If Neptune is well-aspected this will be spiritual uplifting. However, if Neptune is badly aspected it can be psychologically undermining. You will both be subject to disorderly or confused domestic environment. The Neptune person can feel misunderstood, ignored or rejected by the 4th House person or you could end up aggravating each others neurotic, psychological tendencies.

5th house :
Often karmic relationships can occur with this combination. Often this involves gambling or speculation. If Neptune is badly aspected the pursuit of pleasure can be a detrimental factor in the relationship. One of you could be attracted to the other with no reciprocal feeling. There could also be deceit on the part of one or both parties. This is not a good placement for business partnerships involving investment unless Neptune is well aspected. In parent relationships there is danger of parental neglect or deception could occur. If Neptune is badly aspected, unsuccessful romantic relationships could have a psychologically damaging effect on one or both natives often because of subconscious hangups or differences in family background. This placement occurs often in homosexual relationships

6th house :
Indicates unusual circumstance in employee relationships. The Neptune person can cause confusion and inefficiency in the job situation due to daydreaming, lack of attention to details or unwholesome habits that affect health. The 6th House person is likely to think the Neptune person is evasive, inefficient, indolent and undisciplined in work. The Neptune person will regard the 6th House person as overly critical, materialistic and insensitive. This Neptune is badly aspected you could encourage each other in drinking, drug abuse or other bad habits. If Neptune is well aspected you can have a mutual interest in spiritual healing, diet or educational institutions.

7th house :
Peculiar circumstances in marriages and other partnerships are indicated. You will have a strong subliminal, psychological effect on each other. If Neptune is well aspected there can be an idealistic love and empathy which can show itself in the sharing of spiritual, artistic and imaginative values and perceptions. You can cooperative effectively in partnerships related to art, music or entertainment. However it is not a good combination for most business partnerships as the Neptune person can be a confusing influence on the 7th House person. If Neptune is badly aspected, there can be psychological separation between you where one is isolated in a private dream world. Neurotic problems can distort or break down the relationship. There is possibility of deception and evasiveness where mutual responsibility are concerned.

8th house :
Indicates interest in religious occult or mystical activities. There could be confusion,fraud ?and deception if Neptune is badly aspected. The religious and mystical understanding of the Neptune person can help the 8th House person overcome a fear of death and have greater understanding of spiritual matters. The 8th House person can help the Neptune person with financial aspects and both could gain financially through marriage if Neptune is well-aspected.

9th house :
Indicates interest in religious occult or mystical activities. There could be confusion,fraud ?and deception if Neptune is badly aspected. The religious and mystical understanding of the Neptune person can help the 8th House person overcome a fear of death and have greater understanding of spiritual matters. The 8th House person can help the Neptune person with financial aspects and both could gain financially through marriage if Neptune is well-aspected.

10th house :
You may have a confusing relationship in business affairs. If Neptune is well aspected you can cooperative effectively in affairs in entertainment and cinema. If Neptune is badly aspected there could be confusion, fraud or deception in professional affairs or eventual scandal in affairs relating to the political careers or status of the natives. On the positive side, the Neptune person can help advance the career of the 10th House person through his intuitive abilities and imagination especially in fields related to art and entertainment.

11th house :
Indicates friendship based on empathy. There can be sharing of interests in humanitarian or aesthetic activities. You could be mutually involved in groups and friendships that relates to these affairs. There can be mutual involvement with educational organizations. The Neptune person can make the 11th House person more aware of their humanitarian interests. The 11th House person can help the Neptune person to utilize their intuitive and creative abilities in group work. If Neptune is badly aspected the psychological issues of one of you could make the friendship difficult. Where mutual responsibilities are concerned there can be insincerity and deception that make it difficult to achieve goals and objectives. In some cases you will only pretend to be friends in order to avoid nuisance.

12th house :
You are involved with each others subconscious minds and could be associated with charitable or spiritual institutions. There can be strong interest in psychology and probing deeper levels of consciousness. If Neptune is badly aspected you could bring out the worst of each others neurotic tendencies and subconscious fears. You be encourage each other in self-destructive or escapist habits.

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Various sources such as : https://illumeastrology.blogspot.com & Astromatrix