Welcome here, esanabria, 
you might want to have a look at Michael Newton's book, Journey of the Souls. There is an interesting passage on how souls may wish to incarnate at the same time in two different bodies to hasten evolution, it's not a perspective on densities per se, but just another look at incarnations....
Safe journey here !!
you might want to have a look at Michael Newton's book, Journey of the Souls. There is an interesting passage on how souls may wish to incarnate at the same time in two different bodies to hasten evolution, it's not a perspective on densities per se, but just another look at incarnations....
Safe journey here !!