In the angelic heaven there is purity, but not perfection, as there is only one perfection and that is God; there cannot be perfection where there is duality. Imperfection is not learned; it is a state of being, it is limitation. Limitation is the condition of life; however great, virtuous, pure, and strong a person may be, still there is imperfection going towards perfection. The entire interest lies in going forward; if we were born perfect there would be no joy in life.