Tamāla Kṛṣṇa: "By the purification of existence, the finer tissues in the memory become sanctified, and memory being sanctified, one can think of the path of liberation."
Prabhupāda: Just like in our contaminated state we become diseased. What is disease? As soon as you contaminate, or infected by some impure thing, you become diseased. Similarly, our this disease, material disease, birth, death, old age, they are some kind of disease. Otherwise, I am spirit soul; I am pure, as pure as God, because I am part and parcel of God. Due to my impurities of this material body I am suffering.
So if you purify your existence, then you get the quality in complete pureness of God. You become happy. Ānandamayo 'bhyāsāt (Vedānta-sūtra 1.1.12), sac-cid-ānanda-vigrahaḥ (Bs. 5.1). You become jolly. Brahma-bhūtaḥ prasannātmā (BG 18.54). As soon as you purify yourself and become identified with the existence of God, immediately you become joyful, no anxiety. Brahma-bhūtaḥ prasannātmā. So you have to purify your existence. If you keep your body impurified, then how you can relish the purified consciousness? So you have to do it.
Go on.
Tamāla Kṛṣṇa: "All these together lead to Kṛṣṇa consciousness, the great necessity of present-day society."
Twelve: "In charge of the various necessities of life, the demigods, being satisfied by the performance of yajña, supply all needs to man. But he who enjoys these gifts without offering the demigods in return is certainly a thief."
Prabhupāda: Yes. Just see, a strong word is used. Suppose if there is mention, there is recommendation that you should perform sūrya-yajña. Sūrya means the sun. The sun is supplying you so much heat, warmth, and don't you want to give him some tax or satisfy him by sacrifices? So that is our duty. If you are receiving from me so many things and if you do not at least acknowledge your gratitude, then you are a thief.
We are receiving so many benefits through the agents of the Supreme Personality of Godhead, and if we do not acknowledge even, "God is great. He is so kind, in spite of our so many faults He's supplying us nice foodstuff, nice everything," so how much ungrateful the human society has become, just imagine. And they want peace and prosperity. Nonsense. Where is peace and prosperity? You must suffer. You must suffer. That is your due.
Go on.
Tamāla Kṛṣṇa: Thirteen: "The devotees of the Lord are released from all sins because they eat food which is offered first for sacrifice."
Prabhupāda: Yes. Devotees, how much they are grateful, kṛṣṇa-prasāda. "Kṛṣṇa, You have sent so nice fruit, nice flower. First of all You enjoy." Oh, God is very satisfied. Just like a boy, "My dear father, this sweetmeat is very nice. You take." Father knows that sweetmeat was purchased by him. Where the boy can get the sweetmeat? But because the son is offering to the father in love and affection, father says: "Oh, you have give me. It is very nice."
Therefore we cannot offer any Kṛṣṇa. Kṛṣṇa is self-sufficient. He does not require your offering of this foodstuff, that food. But if you offer with affection and love He accepts. And as soon as Kṛṣṇa accepts, your life is sanctified immediately. Therefore we should eat kṛṣṇa-prasāda, nothing more. Not in the hotel, not in the restaurant. Simply kṛṣṇa-prasāda. That will keep me purified always.