Keep up the enquiry

You have to keep up the enquiry, 'To whom is this happening?' all the time.
If you are having trouble remind yourself, 'This is just happening on the surface of my mind. I am not this mind or the wandering thoughts.'
Then go back into enquiry 'Who am I?'.

By doing this you will penetrate deeper and deeper and become detached from the mind. This will only come about after you have made an intense effort.