ÅrÄ«la PrabhupÄda said: So we have acquired our present body because of our past activities. Karmana daiva-netrena jantur dehopapattaye: [ÅrÄ«mad BhÄgavatam: 3:31:1] One gets a particular type of body according to his past karma, or material activities. Nature acts automatically, according to our karma. Suppose you contract some disease. Nature will act: you will have to develop that disease and undergo some suffering. Similarly, when we come under the influence of the modes of material nature and perform karmic activities, we must transmigrate from body to body. Nature’s law works so perfectly. The Journey of Self-Discovery-His Divine Grace A.C. Bhaktivedanta Swami PrabhupÄda