If he likes he can go back to Godhead, "yanti mad yajino 'pi mam,'' [BG 9.25] and stop this transmigration process. Then he comes again perfect in Krishna consciousness. We are trying to bring the human society to this stage of life. In human life even in the lower stage of modes of nature, he can come to the higher stage. That is our movement. In the animal form there is no chance, only in the human form. Unfortunately the modern mode of education is to kill the chance. In animal stage of life it is very dangerous.
Letter to Svarupa Damodara das, 31 August, 1975