Box breathing is often shared as a simple technique for calming the nervous system.
In yoga, this same approach is known as samāvṛtti ratio breathing — equal wave breathing — where inhalation, exhalation, and the natural pauses between them are of equal length.
In this short video excerpt below, Richard Miller introduces box breathing within a much broader yogic understanding of breath, presence, and equanimity. Rather than prescribing a fixed formula, he introduces ratio breathing as an inquiry — emphasizing responsiveness to the body and nervous system over rigid counting.
In this clip, Richard explores:
- how box breathing fits within samāvṛtti ratios
- why comfort matters more than count
- how equal ratios can support calm and steadiness
- why ratios that are too short or too long can be activating
The emphasis is not on control, but on cultivating ease, balance, and presence through the breath.
Practicing Box Breathing
Box breathing typically follows this structure:
Inhale → Pause → Exhale → Pause
All four phases are of equal duration. Common examples include:
- 2–2–2–2
- 3–3–3–3
- 4–4–4–4
There is no single “correct” ratio. A practice that feels calming for one person may feel stressful for another. The invitation is always to choose a ratio that supports comfort and steadiness, not strain.
As Richard notes, equal-ratio breathing can be especially helpful when:
- the breath feels rushed or irregular
- stress or anxiety is present
- there is a desire to restore a sense of internal balance
Over time, different ratios may be explored — but samāvṛtti often serves as a reliable and grounding place to begin.
Guided Practice: Box Breathing (Samāvṛtti)
This guided practice offers a direct experience of box breathing (samāvṛtti) using an even 4:4:4:4 rhythm—equal lengths of inhale, pause, exhale, and pause—as one accessible example of equal-ratio breathing.
You’ll be invited to:
- follow a steady, balanced breath rhythm
- move with care, ease, and attentiveness
- notice how equal ratio breathing supports steadiness and regulation
While this recording uses a 4-count structure, samāvṛtti can be practiced with shorter or longer counts depending on capacity, comfort, and experience—and the recording is intended as a reference point rather than a prescription. What matters most is not the number, but the quality of ease and balance in the breath.
As Richard often teaches, box breathing is commonly used as a regulating practice—particularly supportive when working with stress, trauma, PTSD, and nervous system dysregulation. Its simplicity and predictability can help establish a sense of safety, orientation, and calm—making it a valuable starting place for many practitioners.
A note on practice
Pranayama is most beneficial when practiced gradually and with sensitivity. If at any point the breath feels strained or uncomfortable, return to natural breathing.
For a deeper exploration of ratio breathing — including progression, physiology, and therapeutic application — these teachings are explored in full within Richard Miller’s complete pranayama training on Yogaversity.
Responses
Thank you for your generosity and sharing this beautiful practice for free. Just one thing, is Box Breathing okay to practice if one has high Blood pressure?
Thank you.
I’m both a yoga teacher and clinical psychologist. As a therapist, I’m sometimes hesitant to share box breathing with my anxious clients, as I worry that the breath holds might be anxiety-inducing. I often instead recommend an extended exhale ratio. What are your thoughts on this?