old great bulgaria is teaching an important life lesson to his sons (who are named the same as him)
'so children I'm feeling weaker and weaker bc of the khazars' attacks on me. perhaps one day I won't be around here anymore so I gotta teach u something very important regarding ur survival and welfare. hey kid- not u, the other one. take this arrow'
he gives an arrow to one of the twins (the one who will later become danube bulgaria)
'now try breaking it'
the child snaps the arrow into two without any big effort.
'now try breaking these all at once' old great bulgaria says as he gives his son a bundle of ten arrows.
the young bulgaria struggles for some time, but he eventually manages to break the bundle.
'U STUPID CHILD U RUINED THE NICE PARABLE'