We shall not forget Viṣṇu even for a moment. This is the basic principle of devotional life. Some way or other, we have to remember always Kṛṣṇa. Then whatever condition we may be, we are pure. Sa bahyābhyantaraṁ śuciḥ. This chanting helps us always remembering Kṛṣṇa. As soon as we chant Hare Kṛṣṇa, hear, immediately we remember.
So, so long I remember, I am śuciḥ, I am pure, no material contamination. Therefore if I continue my life in that pure stage, then I am eligible for going back to Godhead. Because nobody can enter in the kingdom of God without being completely pure. Completely pure means anyābhilāṣitā-śūnyam (Bhakti-rasāmṛta-sindhu 1.1.11), no material desire. Here in the material world, we manufacture so many plans to be happy, material desires. Somebody's thinking, "I shall be happy in this way." Somebody's thinking . . . "There is no question of happiness here". The place is contaminated. In a contaminated . . . just like in an infected place you cannot be happy. The medical officer will ask you to leave that place that, "This quarter has been infected by the disease. Better you leave, you go somewhere else." That is the treatment. Infected place must be left immediately.
So similarly, this world, this material world of three modes of different qualities, you have to keep yourself always antiseptic, pure, by remembering Kṛṣṇa. That is the process. As soon as you forget Kṛṣṇa, immediately the infection, māyā, immediately affects you. Kṛṣṇa bhūliya jīva bhoga-vāñchā kare (Prema-vivarta). What is that māyā? Māyā means to plan how to become materially happy. This is māyā. All the people of the world, they are simply making plan how they will be happy within this material world. That's all. This is māyā.
The history of the whole world studied, it is experience that the Roman Empire planned, the British Empire planned, the . . . so many empires, they flourish sometimes, all fail. The Britishers, they were, two hundred years ago, they were planning to rule over this vast land of America. George Washington declared independence; their plan failed. Similarly, in India they were planning to exploit.
Now Gandhi's movement made it fail. So this is bigger plan. Similarly smaller plan also. There are many . . . individually, we make so many plans that, "I shall be happy in this way, in that way, in that way." So this plan-making business is māyā, because that will never be successful. Trace out the history of the whole world. Nobody has become happy. Hitler made a plan, so great a plan. You see? He was frustrated.