In the śāstra it is said that this place is padaṁ padaṁ yad vipadām (SB 10.14.58). In every step there is danger. Although we are trying to mitigate all kinds of discomforts, it is simply changing the burden from head to the shoulder. Just like a coolie carrying some burden, when he feels uncomfortable, he change the burden from head to the shoulder, but actually, that is not mitigating the pains of burden.
Similarly, we are trying to get material comforts by manufacturing or adventing so many scientific discoveries, but that is not actually getting happiness. It is simply changing the position. Exactly we just consider that in your country, especially, you have got many motorcars, but riding on motorcars, how much dangerous conditions you accept. Everyone accept.
So this kind of changing the course of discomfort . . . actually, it is a place for discomfort. You cannot expect real comfort within this material world. It is a place . . . because Kṛṣṇa Himself certifies this place duḥkhālayam aśāśvatam (BG 8.15). It is a place for miserable condition of life. Now, how you can make it a happy place? That is not possible.
So our attempt to make us happy, the example is given, just like to take the heavy burden from head to the shoulder. That's all. Changing the place. Now we are creating so many problems, you know. You have got many cars, many roads, but still, you have to construct highways or flyways, one road after another, one road after another. Still, there is congestion. Still, there is accident.
So in this way we cannot be comfortable. This is a vain endeavor.