Methods to Attaining Asamprajnata Samadhi YS I-20

Yoga Sutra I-20 -SRADDHA VIRYA SMRTI SAMADHI PRAJNAPURVAKA ITARESAM - To the others, this asamprajnata samadhi could come through faith, strength, memory, contemplation or by discernment.

Swami Satchidananda states that these methods will be discussed further in the second book of Yogic practice. Very briefly he says that faith or at least courage should be present. One must be strong and should "have a good memory of all the mistakes you have made and the lessons you've learned so as not to fall back into the worldly rut again." And contemplation , or samadhi is a must as Patanjali has been expounding on throughout these sutras. Finally there is "discernment or discrimination between the real (Self) and the unreal (Prakriti)."