Old and Young Souls. Old souls have Earth experience that dates back to Atlantis, Lemuria or earlier. Old souls may experience a thousand or more incarnations on Earth. Young souls began their experience on Earth since the fall of Atlantis some 11,000 years ago. When I first created this page I discussed the idea of old and young souls under the Earth Soul category. I have since encountered a number of Starseed souls who also "qualify" as old souls so I have moved this to a separate category. Starseed souls may have had extensive incarnational experience on Earth, but is still doesn't quite feel like "home" to them.