Arcana Coelestia#1002
1002. 'Not eating' means not mixing together. This follows from what has been said above. Regarded in itself eating animal flesh is something profane, for in most ancient times people never ate the flesh of any beast or bird, but only different kinds of grain, especially wheaten bread, also the fruit of trees, vegetables, milk, and milk products such as butter. Slaughtering living creatures and eating their flesh was to them abominable, akin to the behaviour of wild animals. Service and use alone was demanded of those creatures, as is clear from Genesis 1:29-30. But in the process of time when mankind began to be as savage as wild animals, indeed more savage, they first began to slaughter living creatures and eat their flesh. And because man had become such, he was permitted to do so and is still permitted today. And insofar as he does so from conscience, it is quite legitimate, for his conscience is given form from all those things he presumes to be true and so legitimate. Consequently nobody nowadays stands in any sense condemned because he eats meat.
Arcana Coelestia#493
493. There is no need to pause too long over the consideration that 'days' and 'years mean periods of time and states. Only this need be stated here, that in the world periods of time and measurements to which numbers may be applied are indispensable, for they belong within the ultimate realms of nature. But whenever such application occurs, the numbers of days and years, and also the numbers applied to measurements, mean something which is completely different from periods of time or from measurements, and which is determined by the meaning of the number used, as in the statements about there being six days for work, and the seventh being holy, which are dealt with above; in the statement about a jubilee having to be announced every forty-ninth year and celebrated in the fiftieth; about the tribes of Israel being twelve, the same number as the Lord's Apostles; and about there being seventy elders, the same number as the Lord's disciples. And there are many other examples where the numbers mean some special characteristic completely different from the persons or objects to which they apply. And when completely separated one from the other the states meant by the numbers are then left.