Q: It is so difficult to avoid getting entangled in the mind. Staying detached from thoughts is like trying to stop the tide from coming in. Waves of new thoughts wash away the detached observer every few seconds.
AS: Self-inquiry must be done repeatedly and steadily. The wandering mind slowly loses its energy when it is subjected to constant scrutiny.
The mind derives all its energy from the attention you give to thoughts and emotions. If you refuse to give them any attention and instead challenge each thought as soon as it appears, sooner or later your attention will stop going out to all your stray thoughts.