Natal Neptune is the sign where your Neptune was placed during birth time, and from there other houses are calculated clock-wise.
If you were born with Neptune in Scorpio, then your natal house is Scorpio (Vrischika Rasi) and during transit, SUN forming conjunction (in Scorpio), sextile (aspect of 60° which are Virgo and Capricorn in this case), square (aspect of 90° which are Aquarius and Leo here), trine (aspect of 120° which are Cancer and Pisces here), opposition (aspect of 180° which is Taurus here) are discussed in this article.
Conjunction is transiting through same sign as in birth chart, sextile is transiting 3rd or 11th house, trine is transiting 5th or 9th house, opposition is transiting 7th house from natal sign.
Transit Sun Conjunct Natal Neptune : Intution, caring of others, mysterious imaginations and fancies characterize this transt. The native is psychically awakened and is more sensitive to the needs of other people than his own and helps the down trodden by donating in charities. If neptune is afflicted in the birth chart then there may be foul playing with the native. If Neptune is well aspected in the birth chart then the individual donates to the needful and he decides this by his intution. With afflictions to Neptune or the Sun in the natal chart, there may be secret love affairs, psychological aberrations and inappropriate romances. Afflictions to the Sun rather indicate self-deception in romance particularly. For the native of psychic nature enhancement of telepatic abilities, psychic experiences like memories of past lives occur and he can carry on mystic or psychic activities at home. The native is spiritually enlightened and practises meditation etc. Under afflictions to conjunction, the native is nervous, uneasy or depressed. To avert this the native should be a bit more courageous and clairvoyant. Under serious afflictions the native is in danger from water or evil spirits. The native should refrain from drugs and drinks. A good transit for artists, photographers, cinematographers, musicians and for ideal love affairs.
Transit Sun Sextile Natal Neptune : Enhancement of imaginative, intutive and creative faculties characterize this transit especially for poets and cinematographers. The native associates himself with hospitals, orphanages, asylums, religious and cultural institutions and understands the needs of needful intutionally. Aptitude for interior decoration finds its manifestation in well decorated homes. The native is activated at subconscious level and is able to asses the coming course of events and possibilities. Also one is able to describe the unknown past happenings as if they are happening at present. This is good time to archieve proficiency in meditation and spiritual areas.
Transit Sun Square Natal Neptune : Escapist tendency, day dreaming, alcoholism, making castles in the air, uncontrolled imaginations and psychic experiences characterize this transit. The individual is further weakened by the misuse of medications or drugs and over use of alcohol. The native is likely to be deceived in romance. He may be involved in secret love affairs and sex. The native is unable to channel properly the speculative thoughts and monetary schemes generating in his mind and the consequent disaster. The native is involved in malpractice of psychism and is exposed to undesirable entities consequently. The native thinks himself to be representing certain cult. The native is unable to handle the normal demands of life and feels discouraged. One can cope with this transit only by cultivating his analytical faculties and delaying the decisions for a while to rethink over the matters.
Transit Sun Trine Natal Neptune : Creative imagination, intution and spiritualism characterize this transit. In the natal chart of psychics with Neptune prominent and well aspected, the spiritual devotion, unselfish and the serving element comes into the picture during this transit. This transit is very good for musicians and poets for new creations of lasting value. People involved in religious, occult and spiritual practices touch new avenues and are able to see future trends by their prophetic insight. A good time for meditation, pilgrimage, ideal love and telepathic initiations.
Transit Sun Oposition Natal Neptune : Unrealistic attitudes, neurotic tendencies, delusion and self deception characterize this transit. The native is grabbed by uncertainties and confusions. The native has to be beware of drugs, alcoholism, unwise speculations and sex. The girls with emotional charts should avoid indulgence in sex acts otherwise they may have to face unwanted pregnancies