liṅgaṁ śakti-trayaṁ mahat
dhatte ’nusaṁsṛtiṁ puṁsi
The sum and substance of material conditional life is explained in this verse. The living entity, the seventeenth element, is struggling alone, life after life. This struggle is called saṁsṛti, or material conditional life. In Bhagavad-gītā it is said that the force of material nature is insurmountably strong (daivī hy eṣā guṇa-mayī mama māyā duratyayā). Material nature harasses the living entity in different bodies, but if the living entity surrenders to the Supreme Personality of Godhead, he becomes free from this entanglement, as confirmed in Bhagavad-gītā (mām eva ye prapadyante māyām etāṁ taranti te). Thus his life becomes successful.