पातञ्जल योगसूत्र (स्वामी विवेकानन्द भाष्य एवं सूत्र व्याख्या)

Patanjali Yoga Sutras
49. तस्मिन् सति श्वासप्रश्वासयोर्गतिविच्छेदः प्राणायामः ॥ ४९॥
tasmin sati shvasaprashvasayorgativichchhedah
pranayamah
Controlling the motion of the exhalation and the
inhalation follows after this.
When the posture has been conquered, then this motion is to
be broken and controlled, and thus we come to Pranayama;
the controlling of the vital forces of the body. Prana is not
breath, though it is usually so translated. It is the sum-total
of the cosmic energy. It is the energy that is in each obdy, and
its most apparent manifestation is the motion of the lungs.
This motion is caused by Prana drawing in the breath, and is
what we seek to control in Pranayama. We begin by
controlling the breaht, as the easiest way of getting control of
the Prana.
50. बाह्याभ्यन्तरस्तम्भवृत्तिः देशकालसंख्याभिः परिदृष्टो
दीर्घसूक्ष्मः ॥ ५०॥
bahyabhyantarastambhavrittih
deshakalasankhyabhih paridrishto dirghasookshmah
Its modifications are either external or internal, or
motionless, regulated by place, time, and number,
either long or short.
The three sorts of motion of this Pranayama are, one by
which we draw the breath in, another by which we throw it
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