I disabled the sound from the video and dubbed over it with really subtle sounds to enhance your experience. Shirt and fabric sounds with slow breathing. Very relaxing, good for stress and over stimulation. The choir also does some nice dancing, and swaying!
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app