All the methods of Hatha Yoga are meant for gaining success in the Raja Yoga. Hatha Yoga Pradipika
Unlike Raja Yoga, the main focus of which is meditation and contemplation, Hatha Yoga studies our physical body.
Hatha Yoga says that self-discipline should begin with the body.
Only after purifying and harmonizing the whole body- stomach, intestines, nervous systems and other processes of the organism, as well as subtle elements and channels, it will be possible to take deep meditation practices.
As subtle bodies are difficult to study, Hatha Yoga uses the connection of physical and subtle bodies. Whatever happens in our subtle bodies are reflected in our physical body. So Hatha Yoga uses the physical body to influence the subtle bodies and psyche.
Hatha yoga balances opposite energies in the body. “HA” is the solar/muscular energy, “THA” is the lunar/feminine energy.
The classical text about Hatha Yoga is called Hatha Yoga Pradipika, written by Swami Swatmarama. It means throwing light on Hatha Yoga. It gives techniques for body and mind purification.
These techniques include shatkarmas, asanas, pranayamas, mudras and bandhas.
In Hatha Yoga Pradipika, the author eliminates Yamas and Niyamas, which are the fundamentals of Patanjali’s Raja Yoga. Instead, here self-control and self-discipline are reached through asana and pranayama.