Patanjali Yoga Sutra 1.31
Sanskrit Sutra
दुःख-दौर्मनस्याङ्गमेजयत्व-श्वासप्रश्वासा विक्षेपसहभुवः॥३१॥
Swami Vivekananda's translation
Grief, mental distress, tremor of the body, irregular breathing, accompany non-retention of concentration.
Chapter link: Yoga Sutra Chapter 1

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