Arcana Coelestia # 86
86. When the spiritual man, already made 'the sixth day', starts to become celestial, which is the subject here at the beginning, it is 'the evening of the Sabbath'. This was represented in the Jewish Church by the holiness of the Sabbath extending from evening onwards. The celestial man, dealt with in what follows next, is the morning.
Four
The number "four" in the Bible represents things being linked together or joined. This is partly because four is two times two, and two represents the ultimate linking between our desire to be good and our understanding of truth. We can also see this in the fact that most buildings are rectangular, with the four sides linking together to make a whole. We also divide directions into four -- north, east, south and west -- and talk about the "four corners" of something meaning all of it. So our special thinking naturally looks at four sides as linking together into a whole.
(Odkazy: Apocalypse Explained 417; Arcana Coelestia 1686, 9103, 9601, 9767, 9864)