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.