Why you have got varieties of life, varieties of position, varieties of de . . .? It is destined. Viṣayaḥ khalu sarvataḥ syāt (SB 11.9.29). Viṣaya, these material enjoyment—means eating, sleeping, mating and defending—these . . . only standard is different. I am eating something, you are eating something. Maybe, in my calculation, you are eating not very good; in your calculation I am not eating very good. But the eating is same. You are eating; I am eating.
So in the material world the standard of happiness, taking the basic principle, it is all the same. But we have created, "This is good standard, that is bad standard. This is very nice, this is very bad." Caitanya-caritāmṛta says, dvaite bhadrābhadra sakali samāna. In the material world, "This is good," "This is bad"—(chuckles) actually, it is the same thing. As it is explained in the Bhagavad-gītā, śītoṣṇa-sukha-duḥkha-dāḥ (BG 2.14). It is due to the skin that we are sometimes feeling warm and sometimes feeling cold. The material nature is the same. Similarly, our feelings of happiness and distress is just like feeling the warmth and, I mean to say, chilly cold. Due to the skin, due to this body.
Actually, there is no happiness in the material world. Kṛṣṇa says, duḥkhālayam aśāśvatam (BG 8.15) "This place is full of misery." Full of misery. Now, how you can make it happy? Caitanya-caritāmṛta also says that dvaite bhadrābhadra sakali samāna. In this material world it is our mental creation, "This is happiness. This is distress." Actually, it is all distress. After all, we have to die. After all, we have to finish this business. So what is happiness or distress?
Bhāgavata also says that, "Don't bother yourself to make yourself happy by working day and night hard without trying for Kṛṣṇa consciousness. This is simply waste of time." There is no question of happiness in this material world. If you actually want to be happy, ānandamayo 'bhyāsāt (Vedānta-sūtra 1.1.12), if you want to be placed in real happiness, that is Kṛṣṇa consciousness. Tasyaiva hetoḥ prayateta kovido na labhyate (SB 1.5.18). So this chance we have got in this human form of life. I can execute the business of Kṛṣṇa consciousness very nicely. In other form of life I cannot do that. Even if I try, it is not possible. That the dog cannot, because it is not a human being. But we can, because we are . . . so why should we lose this chance? Tasyaiva hetoḥ prayateta.