Hatha yoga is about 'Asana' means a 'posture.' A hatha yoga session consists of physical postures focusing on alignment of the body such as postural corrections, increasing the lung capacity, and overall general fitness to carry out your everyday activity with ease.  In normal circumstances, Pranayama is introduced a little later once the body becomes stable.  Yoga props such as blocks, strap, bolsters. Understanding the mechanics of the body, creating a certain atmosphere, and then using body postures to drive your energy in specific directions is what hatha yoga asanas is not an exercise chairs are used when necessary to help access the posture.  Considering the fast-paced lifestyle and instant gratification, hatha yoga is what most people will need, which brings body awareness and become mindful about the ill-nature of the modern lifestyle.   Hatha yoga helps align the physical, mental, emotional, and energy body so that they all can work in harmony. The converse of this is the science of asanas. If you consciously get your body into different postures, you can elevate your consciousness.