Yoga Sutra is a book that teaches people how to do yoga. It was written a long time ago by a man named Patanjali. The book has four parts, and each part has different chapters that tell you how to do yoga properly.
The first part teaches you about yoga and what it is. It tells you that yoga is a way to make your body healthy and strong, and to calm your mind. It teaches you different ways to breathe and how to focus your mind.
The second part tells you about yoga postures, which are called asanas. It teaches you how to do different yoga poses and how to hold them for a certain amount of time. It also tells you how each pose can help your body and mind.
The third part is about meditation. It tells you how to focus your mind and how to perform different meditation techniques. It also teaches you how to quiet your mind and be more peaceful.
The fourth part is about enlightenment. It tells you how to reach a higher level of understanding and how to connect with the universe. It teaches you how to be more spiritual and how to attain ultimate freedom from suffering.
Overall, the Yoga Sutra is a guide that teaches you how to be healthy, strong, and peaceful through yoga. It teaches you how to breathe, how to do yoga poses, how to meditate, and how to reach spiritual enlightenment. By following the teachings in the Yoga Sutra, you can become a healthier, happier, and more fulfilled person.