Caitanya Mahāprabhu's movement is para-upakāra, para-upakāra, because within this material world, with material designation and material environment, they are all suffering. Kṛṣṇa is more unhappy for our suffering because we are His sons. Suppose your son is suffering—you will suffer also, not that the son is suffering. Similarly, because we have come to this conditional state of life, bhūtvā bhūtvā pralīyate (BG 8.19), we sometimes . . . once we take birth and again we die—this is not very good proposal. But these rascals, they do not know how nature is working. Tathā dehāntara-prāptir dhīras tatra na muhyati (BG 2.13). We are leaving one body and accepting another body. This is a great botheration. But the rascal so-called scientist, politician, they do not know this. I therefore say "rascals." They are very much proud of their learning, advancement of science, but they cannot understand the simple truth spoken in the Bhagavad-gītā: dehino 'smin yathā dehe kaumāraṁ yauvanaṁ jarā, tathā dehāntara-prāptiḥ (BG 2.13). There is dehāntara-prāptiḥ. Dhīras tatra na muhyati.
So people are surprised. They do not believe that they are . . . But dhīras tatra na muhyati: those who are dhīra, sober, intelligent, they understand, "Yes, there is dehāntara-prāp . . ." The example He's giving, dehino 'smin yathā dehe kaumāraṁ yauvanaṁ jarā (BG 2.13). Just like we are changing body, kaumāraṁ yauvanaṁ jarā, similarly the old body, "Old order changes to a new." Again we get another body.