The purport is that those who are going . . . trying to be elevated to the higher planetary system, which is called Devaloka, or the planets of the demigods . . . there the standard of living, duration of life, is very, very large. Or if you want to be transferred to the Pitṛlokas, or in the lokas of the ghosts, bhūtejyā, or if you want to be transferred to the loka where Kṛṣṇa lives—mad-yājino 'pi mām—now it depends on your practice. But the rotating, wandering within this material world from one body to another or from one planet to another, that is not advised. That is called saṁsāra. Saṁsāra means material existence. That is called saṁsāra. Bhūtvā bhūtvā pralīyate (BG 8.19). You take your birth once in some form of body. You live for some time. Then you have to give up this body. Then you have to accept another body. Then again live for some time. Then give up that body. Again accept another body. In this way, it is going on. That is called saṁsāra, rotating within this material world.
That is compared with dāvāna. Dāvāna means forest fire. Forest fire, you have got experience. You have seen, might have. In the forest, nobody goes to set fire, but it takes place. Everyone knows it. Similarly, within this material world, nobody wants to be unhappy. Everyone is trying to be very happy, but he is forced to accept unhappiness. This is the position. Therefore it is called dāvāna. Dāvāna means nobody willingly sets fire, but there is fire in the forest.