। ॥ ६ ॥
In plain words
"I am slow, and by nature I go hunting for faults — how could a hymn like this ever be finished by me?" Have no fear, mind. For people exactly like you, She is the one who leads — by her open-handed bounty — every true and gracious word.
Close to the Sanskrit
"Dull, and by nature greedy for fault-finding, am I; how is this hymn to be completed by me?" — Let there be no fear in you, O mind: for those like you, She is the leader, by her bounty, of true and gracious utterances.