In plain words
"Tarati śokam ātmavit," said the Upaniṣad. That is, what removes sorrow, what roots it out, is Ātma-jñāna alone. However many ślokas you read that cannot remove sorrow, they make time a waste and life too barren. All this worldly learning, all this worldly knowledge, came about for the sake of earning a living.
When you attain divinity, the root and foundation of all knowledge and the treasure-house of all the arts, all branches of learning become like a gooseberry in the palm of your hand. Only when man strives toward attaining the divinity of the One who is all-powerful, all-knowing and all-pervading does this come very near to Ātma-jñāna. Such Ātma-jñāna is gained only by those who have purity of citta. What is the way to gain purity of citta? Doing holy karmas is most necessary. Yajñas, yāgas and such rites, karmas of charity and alms-giving, and the powers of tapas are the right ways to it. Purity of citta comes also through such karmas as seeing holy-hearted people and reading their lives in a holy spirit. So they said, "Cittasya śuddhaye karmaḥ." Through these good karmas, through these holy karmas, only purity of citta comes about. Through this purity of citta comes purity of Jñāna. Jñānād eva tu kaivalyam. This is the easy path to Mokṣa. So we must do good works, enter satsaṅga, and take part in service to society with good feelings. But surely, for such karmas as yajñas and yāgas, or for holy reading, learning is needed! Even if we have not learned any kind of learning, any worldly learning, once we recognise the truth that all these studies merely split the oneness of man, the worth of this learning slips away. Deep faith is most necessary for this path. Believe in yourself; believe, believe. Believe in your God; believe. This is the true royal road: Faith in yourself and faith in GOD. This is the secret of greatness. The faith of today does not look deep in the least. Faith born of selfishness, of self-interest, is what we see most; but faith that is for others, bound up with the Paramātma, bound up with the Ātma, is very scarce. Only because this faith has lost its holiness, however many kinds of sādhana man may do, however many kinds of knowledge he may earn, these turn out merely useless.