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The Doctrine and Practice of Yoga Including the Practices...

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Do not attempt to take all the above exercises at one and the same time. Take them several times in the day. Never exercise immediately after a meal or before it. Do not try to force development as you will be apt to suffer from re-action. Slow and steady wins the race. Gentle and persistent exercises are advisable. That will lead to permanent development.

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The Doctrine and Practice of Yoga Including the Practices and Exercises of Concentration, both Objective and Subjective, and Active and Passive Mentation, an Elucidation of Maya, Guru Worship, and the Worship of the Terrible, also the Mystery of Will-Force, Project Gutenberg eBook #13300

SEVEN MINOR BREATHING EXERCISES. EFFECT OF MIND AND BODY.