Kurmasana

Kurmasana, the Tortoise Pose, is one of the more demanding seated forward folds in modern yoga, legs spread wide and the torso folding down low between them.

Kurma means tortoise, and the modern shape, limbs tucked low and close, does genuinely resemble a tortoise drawing into its shell.

Here's the twist though. The Hatha Yoga Pradipika's own verse for Kurmasana describes something else entirely, an ankle placement near the perineum, much closer to the Svastikasana and Gomukhasana family than to the deep forward fold taught under this name today.

Both versions are worth knowing. We'll cover the modern forward fold, since that's what most people mean by "Kurmasana" today, and flag the classical description honestly alongside it.

The modern Tortoise Pose is a deep seated forward fold: legs extended and spread apart, torso folding forward and down between them, arms often threading under the knees, head and shoulders drawing in low.

It's considerably more demanding on the hips and hamstrings than most other seated forward folds covered in this encyclopedia, including Paschimottanasana.

It's used as an advanced hip and hamstring opener and, in some traditions, as a pose associated with introspection and withdrawing the senses, much like a tortoise withdrawing into its shell.

गुदं निरुध्य गुल्फाभ्यां व्युत्क्रमेण समाहितः

कूर्मासनं भवेदेतदिति योगविदो विदुः

Transliteration:

ghudam nirudhya ghulphabhyam vyutkramena samahitah

kurmasanam bhavedetaditi yogavido viduh

Hatha Yoga Pradipika, chapter 1, verse 24 (in Pancham Sinh's 1914 translation, English edition).

Pancham Sinh's 1914 translation reads: "Placing the right ankle on the left side of anus, and the left ankle on the right side of it, makes what the Yogis call Kurmasana."

That's a notably different posture from the wide-legged forward fold most people practice under this name today, closer in spirit to Svastikasana or Gomukhasana. This is one of the clearer cases in the whole text of a pose name drifting to describe a different shape over the centuries. We're not picking a winner here, just reporting both honestly.

• Deeply stretches the hips, inner thighs and hamstrings
• Can have a calming, inward-turning quality, similar to other forward folds
• Builds significant flexibility over a long, patient practice
• Often used as a counterpose after deep backbends

• Sit with your legs extended and spread wider than hip width.
• Bend your knees slightly and walk your hands forward between your legs.
• Slide your arms under your knees, reaching toward the outside of your hips or behind you.
• Fold your torso forward and down, letting your head and chest lower toward the floor.
• Breathe steadily and hold for as long as feels sustainable, without forcing further depth.
• To release, walk your hands back in, bend your knees, and slowly come back up to seated.

• Keep the knees bent generously rather than straightening the legs fully
• Don't worry about threading the arms under the knees at first. A simple wide-legged fold is a complete practice on its own
• Sit on a cushion to tilt the hips forward and make the fold more accessible
• Build toward this pose through Paschimottanasana and hip openers rather than attempting it cold

• Forcing straight legs before the hamstrings are ready
• Rounding aggressively through the upper back instead of folding from the hips
• Holding the breath while straining for extra depth
• Attempting this pose as an early step rather than building toward it gradually

• Lower back injuries
• Hamstring strains or tears
• Hip injuries or significant hip joint issues
• Sciatica, where deep forward folds can sometimes aggravate symptoms

A deep stretch through the hips and hamstrings is expected. Sharp or shooting pain, especially down the legs, is not, and means back off immediately.

• Kurmasana. Deep, wide-legged forward fold. Difficulty: advanced.
• Paschimottanasana. Seated forward fold with legs together. Difficulty: beginner to intermediate.

Kurmasana, maybe more than any other pose in this batch, shows how much a name can drift over hundreds of years of practice. Whichever version you encounter, the tortoise's lesson stays the same: sometimes the most useful move is to draw inward rather than reach further out.

1. The Hatha Yoga Pradipika — Svatmarama; trans. Pancham Sinh, The Panini Office (Sacred Books of the Hindus, vol. XV) (1914) · Link

   Public domain. Classical c. 15th-century Sanskrit hatha yoga text; this early-20th-century English translation is the standard public-domain edition consulted for these entries.