Hermetic Order of the Golden Dawn

In the Hermetic Order of the Golden Dawn there is a sequence of grades which the aspirant will progress through. Each grade is associated with a different spiritual principle. There will be a planetary correspondence for each grade. The grades of the 1st order are associated with Earth, Moon, Mercury, and Venus. This order is called the 'Outer Order'.

The next order of grades are the 'Inner Order'. This is also called the Rosicrucian order. There is a ceremony to initiate aspirants into the Inner Order. Here they attain the status of Adeptship. The planetary attributions for the grade of adeptus minor is identified Kabbalistically as the 5=6 grade This confirms an entry into the Inner Order. This is associated with the Sun. 

The object of the Inner Order is to bring into your consciousness the experience of your own divine nature. 

Here is more information in a book by Chic Cicero on the HOGD:

 The Essential Golden Dawn: An Introduction to High Magic