Prabhupāda: So the fact is that "One who has not listened to the messages about the prowess and the marvelous acts of the Personality of Godhead ..." Now, they have got ... These Māyāvādīs, they have got their ears, but they cannot hear about the activities of the Lord. They'll reject, "Oh, this is all māyā. Let us meditate." So their, these earholes is compared with the snake holes.
When you go, walk on the paddy field, you will find so many holes. Have you got experience? There are so many holes. Even on the beach, you will find so many holes. But especially in the agricultural field there are holes, because the paddy ... The rats and mouse, they come to eat the paddies, and they make hole to live there. And the snakes take advantage. They enter the hole and eat the rat and mouse and live peacefully. So these holes, because there are snakes, nobody utilizes it, that hole. Similarly, when these earholes are not receptive of the message of Kṛṣṇa, it like that, it is not being utilized properly. Similarly, you have got tongue, but you cannot chant Hare Kṛṣṇa. Jihvāsatī dārdurikeva. It is just like the tongue of the frogs. The frogs ... You have got experience during rainy season. They use their tongue very nicely. They sing ka-ka-kan, ka-ka-kan, ka-ka-kan.. (laughter) Yes. But what is the result of singing? The result of singing: in the darkness, the snakes, they can understand, "Here is a frog," and it comes and takes, immediately eats.
Similarly, we have got tongue, and we are lecturing all nonsense things, mental speculation, or singing in the dancing club, ho ho, ho ho, like that. So the result is that we are diminishing our duration of life in that way. The opportunity, the human form of life opportunity, is being uselessly diminished. In the previous verse we have learned, āyur harati vai puṁsām udyann astaṁ ca yann asau.. Because the sun's business is to take away your span of life gradually. So same. As the frog is calling (to) his death, the snake, "Please come here, I am here," similarly, these persons who are talking all nonsense without kṛṣṇa-kathā, they are inviting the Yamarāja, "Please come soon. I am here. I am here." This is the position. So explain.
Pradyumna: Purport: "Devotional service to the Lord is rendered by all limbs or parts of the body. It is the transcendental dynamic force of the spirit soul. Therefore a devotee is engaged one hundred percent in the service of the Lord. One can engage in devotional service when the senses of the body are purified in relation with the Lord. And one can render service to the Lord with the help of all senses. As such, the senses and the action of the senses are to be considered as impure or materialistic as long as they are employed in sense gratification only."
Prabhupāda: The same earholes, you hear some radio message, some materialistic news, some advertisement, so many things you can hear. And in the same earholes, you can hear Hare Kṛṣṇa. So the hearing is there. But when you hear something for your sense gratification, that is material, and when you hear something about Kṛṣṇa, that is spiritual. This is the difference between material and spiritual.