The fundamental thesis of Kriya Yoga is that we are a miniature version of the whole cosmos, a microcosm ― an evolving universe within the macrocosmic world. The all-pervading supreme Creator is hiding within us and activating every action through the breath ― hence the name kriya; any work kri, is being done by the power of the indwelling soul ya. The various cosmic forces controlling ether, air, fire, water, and earth also control the kinds of work, namely, religious activities, relationships, food, progeny, and earning money performed by the human body. Yoga is the means of conjoining this correspondence between microcosm and macrocosm ― realizing the truth behind the union of individual self and the Supreme Self.
The science of Kriya Yoga has a divine origin and was not created by the human intellect. The modern revival for this ancient meditation method began in 1861 with Mahavatar Babaji and has been handed down to the current Kriya lineage of masters directly through the master-disciple method of teaching.
The royal path of Kriya Yoga consists of a vast array of teachings with varied approaches to it. One angle looks at it as a process beginning with self-introspection through breath control. By cultivating the three qualities of light, vibration, and sound synchronously with concentration, posture, and breathing through application of a series of techniques, a seeker is able to penetrate the deepest levels of the unconscious mind. Twin processes of purification ensue through diligent practice. Firstly, the mind is calmed and freed from internal chatter by developing the practice of feeble breath. Secondly, the very process of observation of pulsation and vibrations in the body enables the seeker to eradicate the bondage of subtle desires. Further cultivation of the triple divine qualities leads to a chiseled concentration, or one-pointedness of mind, thereby preparing the seeker to explore thoughtlessness and inner truth.
We are mired in delusion, illusion, and error due to the duality of creation. One seeking liberation from the phenomenal suffering due to the miseries from ignorance, desire, and faulty action, should be able to discover one's blissful nature, and realize that the supreme almighty creator is hiding within and as the self of all beings. Kriya Yoga provides the quickest means to unfold this lurking truth and unravel the deepest mysteries of godhood from within.