Dayānanda: Lord Śiva's relationship with Durgā—does he have a relationship with Durgā?
Prabhupāda: Yes. Durgā is the material energy. So Lord Śiva is directly connected with the material energy. Therefore he's less than Lord Viṣṇu. Viṣṇu is not directly related with the material energy. The example is given in the Brahma-saṁhitā. Just like milk, as soon as in touch with something sour, it becomes yogurt. The yogurt is nothing but milk, but in connection with some sour material, it is yogurt. So yogurt is milk, but it is not milk also. Your child requires milk. You cannot give yogurt. Nobody can argue, "Oh, yogurt is milk preparation, why not give?" No. It will be not beneficial for him. Similarly, if you want release from this material world, you have to take to Viṣṇu, no other demigod. If you want strength, then you have to drink milk, not yogurt. Yogurt, at times you can eat for some taste or some particular purpose. The milk is general drinking. Just take the statistics, how many bottles of milk are sold in the store and how many bottles of yogurt is sold. The yogurt and milk is the same thing. Why they'll demand milk and not the yogurt? Is that right? Yes. But nobody can put argument, "Oh, why do you take milk? Take the yogurt." No. Yes?