In plain words
We must not hurt anyone with harsh words. Though we know this, we cannot put these words on the right path. What is the reason? Selfishness. Selfishness. To make his selfish aim bear fruit, though he knows this kind of thing is wrong, he enters into it and goes on making these kalās unholy. So man alone is endowed with the full kalās. He who makes them holy becomes Puruṣottama. He who makes them unholy becomes the lowest of men. So, in what this Satyakāma asked, the one called Puruṣottama is not in some special place.
God is not in some separate country; God dwells in your own body. Sin is not in some foreign land; it clings to the deeds you do.
Through our karmas alone we become puruṣas, Puruṣottamas, men, or the lowest of men. Our actions alone take us to the higher level. Our actions alone push us to the lower level. So the purāṇas have said that the one endowed with the sixteen kalās is the Paramātma, and that he is Puruṣottama. The Avatāras alone set these kalās on a selfless path, and that is exactly why they made the name Puruṣottama true of themselves. Whatever they did, whatever they saw, whatever they said, whatever they thought, all of it was selfless. In no Avatāra, in Bhārata or in other countries, did they make their five prāṇas, five senses, five elements or mind unholy; they were selfless. Though He moved about as an ordinary man in daily life, in every karma of His He shines and glows, pure, holy, eternal and true. Man cannot recognise this truth. Precisely because they cannot recognise it, they cannot understand humanness. Telling Satyakāma this teaching, the sage Pippalāda said, ‘My son, to recognise the oneness of the two is, to some degree, essential.’
The gross is merely kṣara, the subtle is akṣara. What is purely physical is kṣara. What belongs to the Ātma is akṣara. What belongs to life is kṣara.