The "Come Together" music linked by Q
https://www.youtube.com/watch?v=zPG_0m2RMxE
Here's a video by the performers discussing their inclusion of the Alan Watts text in this music track
https://www.youtube.com/watch?v=QMMmzOlTy7g
And here's a link to the Alan Watts text:
https://www.alanwatts.org/2-5-4-meditation/
What you do is this: as you hear sounds coming up in your head thoughts you simply listen to them as part of the general noise going on just as you would be listening to the sound of my voice or just as you would be listening to cars going by or two birds chattering outside the window. So look at your own thoughts as just noises. And soon you will find that the so-called outside world and the so-called inside world come together. They are a happening. Your thoughts are happening, just like the sounds going on outside and everything is simply a happening and all you’re doing is watching it.
(There's a lot more in the rest of the Alan Watts source material document, it could be worth a dig)