Originally the living entity is a spiritual being, but when he actually desires to enjoy this material world, he comes down

Expressions researched:
"Originally the living entity is a spiritual being, but when he actually desires to enjoy this material world, he comes down"

SB Canto 4

Originally the living entity is a spiritual being, but when he actually desires to enjoy this material world, he comes down.

SB 4.29.4, Translation and Purport:

When the living entity wants to enjoy the modes of material nature in their totality, he prefers, out of many bodily forms, to accept that body which has nine gates, two hands and two legs. Thus he prefers to become a human being or a demigod.

This is a very nice explanation of how the spiritual being, the part and parcel of Kṛṣṇa, God, accepts a material body by virtue of his own desires. Accepting two hands, two legs, and so on, the living entity fully enjoys the modes of material nature. Lord Kṛṣṇa says in Bhagavad-gītā (7.27):

icchā-dveṣa-samutthena

dvandva-mohena bhārata

sarva-bhūtāni sammohaṁ

sarge yānti parantapa

"O scion of Bharata (Arjuna), O conqueror of the foe, all living entities are born into delusion, overcome by the dualities of desire and hate."

Originally the living entity is a spiritual being, but when he actually desires to enjoy this material world, he comes down. From this verse we can understand that the living entity first accepts a body that is human in form, but gradually, due to his degraded activities, he falls into lower forms of life—into the animal, plant and aquatic forms. By the gradual process of evolution, the living entity again attains the body of a human being and is given another chance to get out of the process of transmigration. If he again misses his chance in the human form to understand his position, he is again placed in the cycle of birth and death in various types of bodies.