The Open Door represents fresh starts, new beginnings and renewal. Overall, it is a very auspicious Door for anyone who is about to embark on a new venture or enter a new chapter in life. The Open Door is particularly helpful in the opening of a new business and expanding business operations. Open door is all about career matters. As most people can think of something they are about to begin working on, its effects are beneficial to many. Should the Open Door be fortunate enough to meet with one of the 3 Nobles (Yi 乙, Bing 丙 and Ding 丁), its positive qualities will be amplified.

Natal Position: Qian Palace in the NorthWest(Yang Positive). In the branch of Hai亥 where Ren壬 and Jia甲reside. And as we know Jia甲 is the leader of the Heavenly stem and water is the leader of 5 elements
Representative: Great Leader and fatherly figure
Strengths
As mentioned earlier, the Open Door is suitable for new ventures and new beginnings. Entrepreneurs, investors and newlyweds, are among those who may appreciate its effects. It may be wise to schedule a launch or opening ceremony to coincide with the Open Door’s presence to benefit from its auspicious effects. Additionally, it can help ensure that construction and renovation goes according to plan.
The Open Door may be helpful for travellers, as it ensures that they will arrive at their destination safe and sound without delay.
The Open Door has a subtle beneficial effect on learning as well – it can help a person improve the speed and accuracy in accumulating new information. Individuals in the education industry, tutors and teachers, for example, may wish to schedule challenging topics or courses to coincide with its occurrence for maximum impact.
Weaknesses
The Open Door is an auspicious Door in almost all contexts but it is not helpful for civil matters.
If one is trying to obtain private or secret information about someone else or perhaps to follow up on a suspicion of betrayal, then this Door will favour the suspect’s privacy and hamper attempts to intrude upon it. The Door is therefore unhelpful for the person who is investigating but helpful for the person who is being spied upon.