48. Those of them who are in the heaven of the Mohammedans have only one wife, having rejected more. For there is a Mohammedan heaven distinct from the Christian heaven. But those who eventually, as many do, acknowledge the Lord as one with the Father are separated and are in heavens which communicate with the Christian heavens; and they have conjugial love.

Like most numbers in the Bible, "six" can have various meanings depending on context, but has a couple that are primary. When used in relation to time -- six days, six hours, six years, etc. -- six generally represents a state of labor, struggle and conflict, especially the conflict involved with spiritual growth. The six days of creation, for instance, represent the stages we go through in our lives, working toward the peaceful seventh day, in which our evil desires are removed from us and we can rest. In most other references, six represents all desires for good and all the true ideas that come from those desires for good -- or in the contrary sense, all evil and all the resulting false thinking.