In plain words
It brings Ānanda. This power called vyāna is in our head as the thousand-petalled lotus: our intelligence. When the power of kuṇḍalinī travels from the mūlādhāra to the sahasrāra, all these thousand-petalled lotuses blossom. The power of kuṇḍalinī, having gone from this mūlādhāra cakra to the thousand-petalled lotus, keeps entering that thousand-petalled lotus in blazing splendour. Because he has lost a power of that kind, man falls prey to every sorrow. The great sages were not like that. They made this mūlādhāra cakra holy, made this power of kuṇḍalinī flow on the right path up to the thousand-petalled lotus, and so won fulfilment for themselves. So we must use these five prāṇas on the right path. In this way, though the sixteen kalās are in man himself, he cannot put them to good use. He cannot recognise his own divine nature.
When the wish-cow is there that gives milk for the asking, why spend money to buy a cow? When the wish-tree is there that gives the fruit you desire, why this fondness for the trees of the backyard? When Mount Meru is there in surpassing splendour, why search for silver and gold?
Though the Paramātma, perfect in the sixteen kalās, is in you yourselves, and though the sixteen kalās are there, we cannot recognise their divine nature, and so all our learning becomes unholy and we fall prey to unrest. Never mind that these sixteen kalās cannot change us into puruṣa and Puruṣottama: they are changing us into beasts. Man, who should rise to a higher level, is sliding down to a lower one. What is the cause of all this? We do not experience these sixteen kalās within us on the right path.
Granted, we may not know the Vedas, śāstras, itihāsas and purāṇas, yet we do not try to practise, even to some degree, the principle of morality and honesty in our daily lives. We must speak the truth with our mouth. We must utter sweet words. We must use words that give others joy. We must not hurt others. We must not wound others.