By soul will fly he means that he'll live on forever in the spirit world and through reincarnation, all that kinda stuff. grey place between Black and white is just a metaphor for the difference between good and bad, theres a subtle difference between love and hate, but theres a bigger and more noticable difference between good and bad, or black and white metaphorically! Also he's saying nothing is as simple as black and white, threres an inbetween bit, so everyones got the right to do what they want cos nothing is set in stone
By soul will fly he means that he'll live on forever in the spirit world and through reincarnation, all that kinda stuff. grey place between Black and white is just a metaphor for the difference between good and bad, theres a subtle difference between love and hate, but theres a bigger and more noticable difference between good and bad, or black and white metaphorically! Also he's saying nothing is as simple as black and white, threres an inbetween bit, so everyones got the right to do what they want cos nothing is set in stone