Prabhupāda: Yes. This incarnation is going on every minute, because you are changing your body. Imperceptibly you are changing your body. That is a medical, scientific point, that we are changing our body every second, every minute. This change—you call change, or you can transfer your identity from one body to another, it means the same thing. You see?
So similarly, the ultimate change of this body is called death. When this body is no more workable, then we transmigrate to another body. That body is offered to us according to our consciousness. That is explained in the Bhagavad-gītā: yaṁ yaṁ vāpi smaran loke tyajaty ante kalevaram (BG 8.6). At the time of death, the situation of your consciousness makes you ready for accepting a similar body. And if you quit this body in Kṛṣṇa consciousness, then you get a body by which you can associate with Kṛṣṇa. That is to be understood, how it is possible. Therefore the training should be Kṛṣṇa conscious.
. . . in particular type of consciousness. That we cannot deny. Now if we change our consciousness to Kṛṣṇa type of consciousness, or Kṛṣṇa consciousness, that is perfection of our life. The process is: by chanting Hare Kṛṣṇa we keep always alive to Kṛṣṇa consciousness.
Guest (1): How long it will take for anyone can achieve perfection? How many stages one must go through, or how many years, how many centuries?
Prabhupāda: No. There is no such stereotype rules that you have to do it for so many years, so many . . . it depends on your personal energy of progress. It is very simple to understand. Suppose a man is diseased. No doctor can guarantee that "This will be cured in so many days." You see? It depends on the situation of the patient's condition and accepting the treatment. Similarly, it can be cured in one day or it may not be cured in one thousand days. That will depend on the patient.