Why silence is the default
Silence leaves your attention free to rest on the anchor you chose: the breath, the body, or whatever is present. It also means you practice in the conditions you'll meet most often, an ordinary room with ordinary sounds. There's nothing to follow, and nothing to switch off when you're done.
When a steady background helps
- Noisy places. Sudden or changing noises (a voice through the wall, a door, a passing car) tend to grab attention more than a constant sound does. A low, steady layer of rain can take the edge off them.
- Restless days. A continuous texture can give a busy mind somewhere to rest without giving it something to follow.
- Marking the space. If you sit in a shared room, the same sound every day can say "this is practice time," much as a bell does.
Why rain or wind, and not music
Music has structure: melody, rhythm, change. The mind follows it, anticipates it and responds to it, which is exactly what you're trying not to do. Rain and wind are textures without a story. There's nothing to wait for.
The same goes for anything with words in it. A podcast in the next room is much harder to sit with than rain on the window.
Sound as the anchor
Some practices take sound itself as the thing to attend to. You listen to the rain without naming it, notice how it changes, and come back to listening when you drift. On those days the background isn't a backdrop. It's the practice.
Keeping it from becoming a crutch
- Alternate. Sit in silence on some days and with sound on others. If you can only settle with rain playing, that's worth noticing.
- Keep it low. The background should sit underneath the bell, not compete with it.
- Decide before you start. Pick silence or sound for the whole session, and don't change it halfway.
In Echo
Echo has two background sounds: rain and wind. Both are optional, and both are off unless you turn them on, so the default session is bell, silence, bell.