Yoga Sutra 2.54 a: Pratyahara, withdrawal of the senses achieved thru Kriya Yoga by getting centered

Yoga Sutra 2.53: And, the mind attains the ability for Dharana, concentration, with Pranayama.

Yoga Sutra 2.52: Pranayama removes veil over inner light of knowledge and heralds dawn of wisdom.

Yoga Sutra 2.51 c: 4th Pranayama ends Dualities - Enables Non Dualistic thinking

Yoga Sutra 2.51 b: 4th Pranayama- From Doing to Being- Effortless effort aligns us with the infinite

Yoga Sutra 2.51 a: The 4th Pranayama transcends, and appears effortless and non-deliberate.

Yoga Sutra 2.50 f: Immense benefits of Pranayama - Advanced Yogic Breathing

Yoga Sutra 2.50 e: Advanced Yogic Breathing Pranayama practice

Yoga Sutra 2.50 d: Yogic Breathing Pranayama: Long and subtle breath thru Desha, Kala and Samkhya

Yoga Sutra 2.50 c: Regulation by Desha in Pranayama renders breathing long and subtle.

Yoga Sutra 2.50 b: Desha: Significance of Pranayama regulation by Desha (Place)

Sutra 2.50 a: Breath, regulated with precision in Pranayama, becomes progressively long and subtle.

Yoga Sutra 2.49 c: Pranayama is mastery of Pran, the universal life force, through the breath.

Yoga Sutra 2.49 b: Pranayama is Cosmic Energy churned through in-out breath producing nectar of life

Yoga Sutra 2.49 a: With Asana perfected, regulation of flow of inhalation & exhalation is Pranayama

Yoga Sutra 2.48: Thus thru Asana, one is undisturbed by dualities of pairs of inseparable opposites.

Yoga Sutra 2.47: By relaxation of effort and absorption in the infinite, the Asana is mastered.

Yoga Sutra 2.46: Asana, Posture of body, as also the posture of mind, should be firm and pleasant.

Sutra 2.45 Niyama 5 Isvara Pranidhana, Kriya Yoga, Self surrender to God leads perfection in Samadhi

Yoga Sutra 2.44: Niyama 4: Svaadhyaya, Kriya Yoga: Union with knowledge leads to union with Divine.