Let's 1st understand what these planets represent on their own?

Venus - Venus is Beauty, Desire and Love, Liquid Money. Venus is the main significator of marriage. Venus represents girlfriend or wife for a man. Venus is the significator of all relations, may it be husband-wife or mother-daughter. Philosophically speaking, Venus is also the cause of all the sufferings in our life. How? Because Venus represents our desires and we get pain and suffering in our life only when our desires are not fulfilled.

Ketu - Just like Rahu, Ketu also represents Illusion as both are ilusionary planets but the difference is that Ketu is also the one who removes the illusion and brings enlightenment. Besides this, Ketu represents Isolation, Separation, Spirituality, Mystical World, Other Dimension means things related to Alien World, also represents Son, Dog, Intuition, Research Ability, Curious Nature, things which we have already achieved in past life and not much concerned to perform in this life. 

House Ruler - Besides these karaka things, Venus & Ketu will also rule some houses in your chart and will represent things related to that house. Of course we can't cover conjunctions Ascendant and house wise else it will never be over. So, you have to include those things at the time of interpreting this conjunction. Also, we need to keep in mind all Yogas and Raj-Yogas which their conjunction would be making to completely understand the conjunction. Here, we can only cover meaning as per karakas. 

Meaning of Venus-Ketu Conjunction - Ketu represents those things which we have already done/experienced in past life but it doesn't mean that we have done it perfectly well. When a planet gets conjunct with Ketu, person has some left-over karma from past-lives related with that planet. So, when Venus is with Ketu, it shows someone who has some past-life karma with his lover or spouse. We can also say that whomsoever these people meet for relationship would have some karma to payback from past lives. Although, it is more popularly interpreted as conjunction which can give a spiritual partner and it can be the case, but fact of the matter remains that Ketu is a strong malefic planet and it is with gentle planet like Venus. So, Venus will be impacted by malefic nature of Ketu anyhow which is about Isolation/Separation. It means that due to their own desires or social environment or family pressure they get married or get into relation but then they feel isolated/separated from that relation/partner. Difference between Rahu-Venus and Ketu-Venus conjunction is that Rahu-Venus conjunction keeps you gravitated towards relationship in the hope that next partner may be better one but in Ketu-Venus conjunction person finally has this realization that relationship itself is not meant for them. So, Ketu in the end helps in removing the illusion. As Ketu is headless, they can be blind in choosing their love interests and that may lead to disappointments and isolation. On positive side, these people will have love towards occult, mysticism and spirituality. They can also give lots of time in research and investigation of their interests, creative skills and things they love. They love to research. They can also be in finance field. 

Who will win the Conjunction? - Ketu will. Venus will be impacted by Ketu's presence. 

Dignity & Strength - 

Again, Venus dignity will decide how Ketu is going to behave but take it for granted that relations will be screwed, whichever dignity it is. 

Still this conjunction can give some positive results in matters of spirituality, occult, mysticism, hobbies, interests, research and finances in sign of Taurus, Gemini, Libra, Sagittarius, Capricorn, Aquarius & Pisces. Relationship will still suffer. 

In Leo, although Venus is in enemy sign but as Leo is sign of Creativity, creativity factor will still prosper as Ketu will make person research and improve on his creative side of life. 

In Cancer, person will get into useless emotional love stories which may end up in bitter separations.

In Virgo & Scorpio, this conjunction can be really troublesome for relation though person will have immense research ability and they would love to research and perfect themselves or their knowledge base. 

Hope this helps. Please post any comment or query you may have. 

Thanks, 

Vishal S Saxena – Astrologer