Chapter 4, Verse 15

15. Seven doubles: Bet, Gimmel, Dalet, Kaf, Peh, Resh, Tav. With them were engraved seven universes, seven firmaments, seven lands, seven seas, seven rivers, seven deserts, seven days, seven weeks, seven years, seven sabbaticals, seven jubilees, and the Holy Palace. Therefore, He made sevens beloved under all the heavens.

In this verse we are told how the pattern of seven is replicated at all levels. As mentioned earlier, by repeating simple patterns over and over at all levels, incredible complexity may be generated. Observe below, once again, how complex curves may be generated from simpler ones by repeating fundamental patterns.