When the Mishna or Gemara says that someone has no portion in the world to come, is that referring to his body or soul?
In the context of belief in gilgulim, a soul can be reincarnated many times into various bodies. Let's say the soul gets reincarnated 5 times - the first 4 were mostly righteous but had to come back to fix something, but in the 5th he did something that caused him to lose his cheilek in olam haba. Does that mean the first 4 also lose it (since it's the same soul)? Or maybe somehow those four bodies get a portion in the world to come, since they were righteous - but if so what soul will they have?