According to Paramhansa Yogananda in his Autobiography of a Yogi, Kriya Yoga is the most effective technique for reaching the goal of Yoga: Self-Realization.
Self-Realization is the knowing in all parts of body, mind, and soul that you are now in possession of the kingdom of God; that you do not have to pray that it come to you; that God’s omnipresence is your omnipresence; and that all you need to do is improve your knowing.
— Paramhansa Yogananda
What is Kriya Yoga?
Kriya Yoga is an advanced technique for spiritual evolution that has been taught by enlightened sages for thousands of years. Part of the ancient science of Raja Yoga, it is mentioned by Patanjali in his Yoga Sutras and by Krishna in the Bhagavad Gita.
Kriya works by giving the practitioner control of the life force. Through life force control, the yogi is able to overcome all the obstacles preventing union with the divine.
How to Learn Kriya Yoga
Those wanting to learn the advanced Ananda Kriya meditation techniques need first to develop a regular daily practice of meditation and the Energization Exercises. Further steps include more advanced meditation practices and the exploration of one’s inner relationship with God and Yogananda. An important step prior to receiving Kriya Initiation (instruction in the advanced Kriya techniques) is that of discipleship to Yogananda. Lessons and courses in discipleship are available. It typically requires a minimum of one year of daily practice of the energization exercises and the Hong-Sau technique before one receives Kriya Initiation.