In plain words
Though it is in man, this Ahaṅkāra and this sense of "mine" cover everything up and hide his own true nature. Then Indra himself, bowing his head,
Even a blade of grass does not stir unless You will it; why speak of 'that' and 'Yours'? from the ant to Brahmā, all is You alone; they do not know it, nor are they troubled in mind; some on earth, sure that they act with Viveka, greatly swell with pride, but none can know what will happen at the end, at what hour, however great they may be.
"O Lord! However much intelligence we have, what is the use? However much strength and ability we have, what is the use? However learned we may be, what is the use? However much wealth, gold, goods and vehicles we live among, what is the use? However much strength of wealth, strength of arm and strength of intellect we have, when there is no strength to know You, all strength is only weakness," he said. "To know You there is only the strength of Prema; no other strength can know You," he said. There is no strength greater than this strength of Bhakti. What is Bhakti? To love God with a selfless heart, a pure feeling and a citta free of Ahaṅkāra: that itself is Bhakti. So man's strength and ability are not in the senses at all. Those senses do their own work only by the strength of Brahman. Recognise the truth that all our senses are karaṇas. Regard them as tools. Becoming the kartā ourselves, set them to work where they are put to good use.
At certain times certain kinds of disease come upon these tools. What is the disease that comes to these tools? There is a crowbar. It is just a tool. But from being used and used, it becomes blunt. That bluntness itself is its disease. We must put it back in the fire, beat it with a hammer and make it sharp and straight again.