The Four Hatha Yogas And Practical Concentration And Meditation by Ernest Wood is a comprehensive guide to the ancient practice of Hatha Yoga. The book explores the four main types of Hatha Yoga, including physical postures (asanas), breathing techniques (pranayama), internal cleansing practices (kriyas), and meditation (dhyana). The author provides detailed instructions for each type of practice, as well as tips for developing concentration and cultivating...