The ancient Romans had a special punishment for those guilty of parricide, which involved sewing the guilty party into a leather sack and tossing him into a river or the ocean. This, according to Cicero, symbolized how the heinousness of the offender’s crime sundered him from the realm of natural law.

This punishment evolved over time, with the addition to the sack of animals such as a viper and a dog. Eventually four animals were used, and this became the classical form of this punishment, which was known as the poena cullei.

It’s hard to imagine how horrible this would have been. Suffocating would be awful enough, but throughout the ordeal you’d have two terrified animals working themselves into a panicked rage as they clawed and bit each other, as well as you.

This image came to mind last week when I was at a meditation class and people were talking about trying to manage the restless thoughts that intruded into the meditation practice. People mentioned various ways that they try to calm their thoughts, such setting an intention to stay focused on the breathing. But it struck me that this is a bit like trying to calm down a dog and snake that are tied in a sack with you.

It’s difficult to calm your thoughts when you feel trapped with them in what feels like a confined space.

What I find works best for calming thoughts is to develop a sense of spaciousness. This is akin to opening the sack and setting the dog, the snake, and yourself free in a large meadow. You’re all still together. But there’s less pressure, less fear, and therefore more calmness and ease.

What does this mean, to develop a sense of spaciousness?

Although beginners to meditation often think about noises as being distractions, these sounds are simply sensations that we can be mindful of. In other words, rather than being distractions from meditation, sounds are opportunities to practice meditation.

So, right now, try being aware of the sounds around you. (You might want to close your eyes.)

As you pay attention mindfully to these sounds, notice how they are inherently spacious. The sounds you hear may come from several yards away, or even from miles away. This is a much larger space than the tiny “leather sack” of your head, where you may often feel you are suffocating with your thoughts.

As you’re mindfully paying attention to the sound and space surrounding you, notice what’s been happening with your thoughts. They will probably still be there, but it’s likely that they’re no longer bothering you. The snake and dog of your thoughts are off doing their respective things, and aren’t causing a disturbance.

Now, let your attention narrow again until it’s inside your skull, and you’re focusing on your thoughts. How does this feel? Does it feel constricted, tight, and unpleasant?

Broaden your awareness to the sound and space around you once again, and notice how that feels. Perhaps it’s more relaxed, calm, and easeful?

Try alternating in this way a few more times, to reinforce the fact that whether you let your awareness be expansive or contacted is a choice. Also, you can reinforce that an expansive and calm awareness, even if it’s unfamiliar to you, is someplace you can feel at home.

Trying to negotiate with our thoughts can sometimes work, but often it’s as futile as trying to calm trapped and panicky animals. It’s better broaden your attention—to open up the leather sack—and to let your thoughts exist in a spacious field of awareness, where they will naturally and spontaneously find peace and calm.