We all know that, no matter how furious the sea is on the surface, not far below the surface it is absolutely still.

It is very restful to go down there in imagination.
Whatever choice we may make to quiet our minds and our bodies, as soon as we begin to concentrate we must not be surprised if intruding thoughts are at first constantly crowding to get in.

We must simply let them come.

Let them come, and pay no attention to them.
I knew of a woman who was nervously ill, and some organs of her body were weakened very much by the illness.

She made-up her mind to rest herself well and she did so.