prime jedi, balance- the FIRST of the ORDER. kylo ren, darkness– leader of the FIRST ORDER. rey, light– LAST of the ORDER. the prime jedi may have been two people or a single person, who utilised both sides of the force together to create balance, but either way it adequately pertains to rey and ben. they are the two, of the first order and the last order, who will bring balance. it’s hinted in the words, imagery and lore.