In plain words
So the senses have become subject to the Manas and keep following only the way of the Manas; they do not yield to the Buddhi in the least.
Far subtler than the body are the senses. Far subtler than the senses is the Manas. Far subtler than the Manas is the Buddhi. Far subtler than the Buddhi is the Ātma. Everything has to come under the Ātma; there is no escaping it. So in human life the senses are mighty and strong. Only when we first of all check these senses does this life take shape as an attractive life. Today, only because they cannot check the senses, their walk, their bearing, their way of sitting, all of it takes a wrong course. No student is to be seen who sits properly in the classroom, without stirring or fidgeting. How to walk, how to sit, how to sleep, how to speak, how to behave when among elders: they know nothing of these things at all. When you are talking with a friend, your gaze should be on that friend; you must not talk while looking this way and that, that way and this. You must not let your gaze stray in any way at all. This matters very much for young people. One must take care to keep one's own gaze a right gaze. When talking with anyone, they keep moving all their limbs in all sorts of ways. When some people talk, when they give a speech, it is like doing a big dance. Hands and feet all waving about, it turns into a show of ugly gestures. You must speak without moving your limbs about. By our making efforts of this kind, all the senses, through practice, enter the right path. That is why
'Better indeed is Jñāna than practice; better than Jñāna is dhyāna; better than dhyāna, giving up the fruit of karma; from giving up, Śānti follows at once,'
they said. We must practise every single thing. Without practice we cannot achieve anything.