Sadhana pada pantajali
Chapter two of the Yoga Sutras of Patanjali is the Sadhana Pada takes us ahead by explaining how one might get into a yogic condition. This section contains 55 sutras explaining yoga as a discipline outlining its eight limbs of yoga or practical aspects.Since Samadhi is so challenging, we must approach it carefully. Kriya-yoga is the preparatory stage. Kriya yoga means working towards yoga.
visit:https://www.nirvanayogaschooli....ndia.com/blog/sadhan