Puruṣaḥ means enjoyer and prakṛti means enjoyed. So the prakṛti forgets her position and artificially he wants to become puruṣaḥ. Puruṣaḥ prakṛti 'stho bhuṅkte prakṛti-jān guṇān. So long he's in this material world, he has to associate with the modes of material nature.
Everyone is abodha-jāto. So anyone born in this material world in different platform... One may take birth as demigod in the heavenly planets or one may take birth as a human being in the lower planets. And lower than that, animal, plants. There are 8,400,000 different species of life. So any form of life, we are bound up by the laws of nature, and bhuṅkte prakṛti-jān guṇān. The puruṣaḥ... Puruṣaḥ means the living entity. Puruṣaḥ... Actually, nobody is puruṣaḥ. Everyone is prakṛti. Apareyam itas tv viddhi me prakṛtim parām. Parā prakṛtim. The material, matter, is the aparā-prakṛti, and spirit soul is parā-prakṛti. In the Bhagavad-gītā it is clearly explained, bhūmir āpo 'nalo vāyuḥ (BG 7.4). This is... Bhinnā me prakṛtir aṣṭadhā. This is separated. This is also nature, but inferior. Apareyam itas tv viddhi me prakṛtiṁ parām. There is another prakṛti. What is that? Jīva-bhūto. This living entity. So living entity is also prakṛti, but because he has the tendency to enjoy this material world, he is sometimes described as puruṣaḥ. Puruṣaḥ means enjoyer and prakṛti means enjoyed. So the prakṛti forgets her position and artificially he wants to become puruṣaḥ. So this puruṣaḥ, prakṛti 'stho. Puruṣaḥ prakṛti 'stho bhuṅkte prakṛti-jān guṇān. So long he's in this material world, he has to associate with the modes of material nature, sattva-guṇa, rajo-guṇa, tamo-guṇa. Bhuṅkte prakṛti-jān guṇān. And on account of the influence of the prakṛti-jān guṇa, he has to take different types of bodies. Puruṣaḥ prakṛti 'stho bhuṅkte prakṛti-jān guṇān kāraṇaṁ guṇa saṅgo 'sya (BG 13.22). This is the kāraṇa. He's associating with a particular type of the modes of prakṛti-jān guṇān—sattva-guṇa, rajo-guṇa, tamo-guṇa—and on account of this he gets different types of body. You have to change your body. Dehāntaram. Tathā dehāntaram-prāptir. But different grades of body is awarded by the laws of nature according to our karma.