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.

914. Verses 18-19 And Noah went out, and his sons, and his wife, and his sons' wives with him. Every wild animal, every creeping thing, and every bird, everything creeping over the earth - according to their families they went out of the ark.

'He went out' means that this did in fact happen. 'Noah and his sons' means the member of the Ancient Church. 'His wife and his sons' wives with him' means the Church itself. 'Every wild animal and every creeping thing' means his goods, 'wild animals' goods belonging to the internal man, 'creeping things' goods belonging to the external. 'And every bird, and everything creeping over the earth' means truths, 'bird' truths belonging to the internal man, 'thing creeping over the earth' truths belonging to the external. 'According to their families means pairs. 'They went out of the ark' means, as previously, that these things did in fact happen; and at the same time a state of freedom is meant.