For the entire transcript
https://wahiduddin.net/mv2/VII/VII_16.htmOn difficulty of concentration,
The control of the activity of mind is called concentration in the language of the mystics. The meaning of this word is often not rightly understood. People are apt to think that concentration means only closing the eyes. But one may close one's eyes for hours, and still the thoughts keep coming like a moving picture. People are never at rest, never at peace; anxiety and sorrow do not disappear just because they close their eyes. It is concentration that does that. Concentration is activity of mind in the direction desired; our desire dictates in which way the mind is to be active; the mind acts according to our wishes.
How difficult it is to do this, is best known by those who have tried. As soon as the mind is still and inactive it begins to jump and run away from control. It runs in every direction but in that which we wish. We hold it; it slips away. Not till one begins to try and concentrate does one see how uncontrollable and unruly the mind is.