One of the concepts in Golden Dawn that creates a lot of smoke, but very little heat is lineage. A lot of people talk about it as it if it is the heart and soul of Golden Dawn. Especially those who are in the business of selling you the product of their Order.
But is it that important?
I would have to say no. Ultimately, it is the work that is the important part of the system. The world best lineage and a ten dollars will pay you a cup of coffee (presuming of course, that Starbucks has not raised their prices since this morning).
I was told by the people that brought me into Golden Dawn that "The only thing that you can know for sure about your lineage is the people who were in the room during your initiations; everything else is merely hearsay."