2176. 'Take quickly three measures of meal of fine flour, knead it, and make cakes' means the celestial existence of His love in that state. This is clear from the meaning of 'meal', 'fine flour', and 'a cake', dealt with in the paragraph immediately after this. That such matters are embodied here no one can possibly believe who fixes his mind on the literal sense, or sense of the words, even less if he fixes it on the historical events described by them; for he will be thinking not only about what Sarah was told to prepare but also about the men who came to Abraham and not about there being deeper things hidden within these descriptions. This is the reason why he is able to believe still less that arcana lie concealed in the historical sections of the Word as much as they do in prophetical parts. For historical descriptions draw the attention of the mind very much to themselves and obscure the things that are interior. Nevertheless the fact that arcana are present within those descriptions, hidden deeply within them, becomes clear from the single consideration that it is the Lord's Word, which has been written not only for man's benefit but at the same time for heaven's as well. Indeed it has been written in such a way that when man reads it, angels at the same time gain heavenly ideas from it; so that by means of the Word heaven is joined to the human race. What 'meal', 'fine flour', and 'cakes' are used to mean in the internal sense follows next.

The internal meaning of “blood” is a little tricky. In most cases, blood is linked with Divine Truth and it’s relationship with the Lord. But in some cases, especially when discussing the first half of Genesis, the Works of Swedenborg link blood to a state of caring, or love to the neighbor. No absolute explanation is offered for this, but it’s worth noting that blood takes a number of forms in the body – it sometimes carries nutrients and oxygen, sometimes waste products, and sometimes nutrients and carbon dioxide. So it’s not unreasonable for blood to have different meanings in different contexts.