Chanting magnetises each cell of the body.
It is not a wonder, that the chant remains with one, wherever one goes. It goes on in the background.
We lay down to rest. Eyes are closed.
Chant is going on in the background.
Let it go on?
Alternatively, you could do the exercise of the light.
Imagine a pitch dark cave.
You are in the cave.
The entrance is completely blocked by a boulder.
The boulder has a crack, though, through which white light is coming in.
Whiter than white.
As white as it gets.
And then whiter.
Imagine the crack getting bigger.
More white light comes in.
White light engulfs you.
You are in the white light.
The white light is in you.
Remain in the white light.
Guide it to your aches and pains.
Fall asleep in the white light.
You will be amazed at how fast your body recuperates and then some.
What have you achieved?
You now have something extremely constructive to do between the time that eyes are closed and the time that you fall asleep.
Also, you are simultaneously then not chanting with eyes closed.