In plain words
It is the differences among the guṇas within it that are the cause of Prakṛti taking on many kinds of forms. Consider one thing and it will become clear. Man behaves with various vṛttis: at one time joyful, at another sorrowful, at another fearful, at yet another courageous. Is this not due to the change in the guṇas? Would you say not? Then what else? Nothing other than the guṇas can change man. If the three guṇas in man, sattva, rajas and tamas, are in balance, no change whatever comes, is or arises in him. But if the three guṇas are scattered and keep rising and falling, Prakṛti leaves its single form and appears in many kinds of forms. The three guṇas have three distinct svabhāvas.
Rajoguṇa is the noose that causes ‘desire’; it is what causes ‘attachment’ to the objects of the seen world. It has attachment to the pleasures of this world and of the next.
ప్రకృతి అనేక విధములైన రూపములు దాల్చుటకు దాని యందుందు గుణభేదములే కారణములు.