There’s a moment in Yogananda’s Autobiography of a Yogi that stopped me cold the first time I read it. He describes a technique so powerful that it could compress decades of spiritual evolution into a few short years. Not through belief. Not through scholarship. Through a specific, scientific practice of working with breath and energy in the spine.
I remember thinking: That can’t be real.
And then I spent the next several years finding out it was.
Kriya Yoga is probably the most whispered-about practice in modern spirituality. People who practice it tend to speak of it with a quiet reverence that borders on secrecy. People who haven’t encountered it are often deeply curious, what exactly is this technique that Yogananda called “the airplane route to God”?
I want to share what I can here honestly. Kriya Yoga is an initiation-based practice, which means its specific details are traditionally passed from guru to disciple, not published in books. I’ll respect that boundary. But there’s still a great deal that can, and should, be said about what it is, where it comes from, and why it matters.
A Lineage Written in Light
The story of Kriya Yoga’s modern revival reads like a spiritual thriller. According to Yogananda, the technique is ancient, older than recorded history, but it was lost to the world for centuries until it was revived by a mysterious, deathless master known as Mahavatar Babaji.
Babaji, whose origins remain shrouded in mystery, passed the technique to Lahiri Mahasaya in 1861 during a remarkable encounter in the Himalayan mountains. Lahiri Mahasaya was a humble householder, a married man with a government job, and Babaji specifically chose him because he wanted Kriya Yoga to reach ordinary people, not just monks living in caves.
Lahiri Mahasaya taught it to Sri Yukteswar Giri, a rigorous and intellectually brilliant teacher who synthesized Eastern and Western spiritual thought. Sri Yukteswar then passed it to his most famous disciple, Paramahansa Yogananda, who carried it across the ocean to America in 1920.
Each link in this chain matters. Babaji represents the timeless source. Lahiri Mahasaya grounded it in everyday life. Sri Yukteswar refined and intellectualized it. And Yogananda made it accessible to the Western world through his extraordinary gift for language and his tireless decades of teaching.
What Can Be Said About the Practice
Here’s what I can share without overstepping the tradition of initiation.
Kriya Yoga is a pranayama technique, a practice involving the conscious direction of life force (prana) through the subtle energy channels of the spine. It works with the chakras, the cerebrospinal axis, and the breath in a very precise way.
Yogananda described it in Chapter 26 of his Autobiography of a Yogi with striking clarity:
“Kriya Yoga is a simple, psychophysiological method by which human blood is decarbonized and recharged with oxygen. The atoms of this extra oxygen are transmuted into life current to rejuvenate the brain and spinal centers. By stopping the accumulation of venous blood, the yogi is able to lessen or prevent the decay of tissues. The advanced yogi transmutes his cells into energy.”
– Paramahansa Yogananda, Chapter 26
Now, Yogananda was speaking to a 1946 audience steeped in scientific materialism, so he often framed spiritual realities in physiological terms. But the deeper point is this: Kriya Yoga works directly with the energy in your spine. It’s not visualization. It’s not positive thinking. It’s a technique that produces tangible, felt changes in your inner experience from the very first practice.
The practice involves a specific circulation of energy, up and down the spine, synchronized with the breath and with focused attention on the spinal centers. Each cycle of this circulation is said to be equivalent to a year of natural spiritual evolution. Yogananda was bold about this claim and never backed away from it.
The Airplane Route
Why “the airplane route to God”? Because most spiritual paths, as Yogananda understood them, work slowly. Moral development, devotional prayer, intellectual study, all of these are valuable, but they’re like traveling by foot. Kriya Yoga, he said, accelerates the process dramatically because it works directly with the mechanism of consciousness itself, the spine and brain.
In Chapter 34 of the Autobiography, Yogananda recounts his guru Sri Yukteswar’s explanation:
“The Kriya Yogi mentally directs his life energy to revolve, upward and downward, around the six spinal centers (medullary, cervical, dorsal, lumbar, sacral, and coccygeal plexuses) which correspond to the twelve astral signs of the zodiac, the symbolic Cosmic Man. One half-minute of revolution of energy around the sensitive spinal cord of man effects subtle progress in his evolution; that half-minute of Kriya equals one year of natural spiritual unfoldment.”
– Paramahansa Yogananda, Chapter 26
I’ll be honest, when I first encountered this claim, my skeptical mind recoiled. One half-minute equals one year? That sounds like spiritual marketing. But I’ve come to understand it differently over time. What Yogananda was pointing at isn’t a mechanical equation. It’s the recognition that working directly with the energy body, rather than approaching spirit only through the thinking mind, is profoundly more efficient. It’s the difference between trying to heat a room by talking about fire and actually lighting one.
Why It’s Kept Behind Initiation
People sometimes bristle at the idea that a spiritual technique requires initiation. It can feel elitist. Why not just publish the instructions and let everyone try it?
I used to feel this way too. But I’ve come to see the wisdom in it.
First, there’s a practical reason: Kriya Yoga works with powerful energies. Done incorrectly, without proper preparation, it can cause discomfort or imbalance. Not because it’s dangerous in itself, but because an unprepared nervous system can be overwhelmed, the way plugging a small appliance into an industrial power source would fry its circuits.
Second, there’s a relational reason. Initiation creates a bond between teacher and student. It’s a commitment. It says: I’m not dabbling. I’m serious about this. And that seriousness, that intention, actually matters. It changes how you approach the practice.
Third, and perhaps most importantly, the technique alone isn’t enough. Kriya Yoga is embedded in a larger system that includes moral preparation, devotion, concentration practices (like the Hong-Sau technique), and an ongoing relationship with the teaching lineage. Ripping the technique out of that context would be like handing someone a scalpel and calling them a surgeon.
How to Begin
If you’re drawn to Kriya Yoga, here’s the honest path forward.
You don’t start with Kriya. You start with the preparatory practices, and these are freely available. The Self-Realization Fellowship (SRF), which Yogananda founded, offers a structured series of lessons that include the Energization Exercises, the Hong-Sau concentration technique, and the AUM meditation technique. After about a year of practicing these, you can apply for Kriya initiation.
Ananda, another organization in Yogananda’s lineage founded by his direct disciple Swami Kriyananda, also offers Kriya preparation and initiation, sometimes on a shorter timeline.
There are other Kriya lineages too, some tracing back to Lahiri Mahasaya through different channels, and each has its own approach and timeline for initiation.
My suggestion: don’t rush it. The preparatory practices are powerful in their own right. Hong-Sau alone can transform your meditation. And the patience required to prepare properly is itself a form of spiritual practice.
A Practice, Not a Philosophy
What strikes me most about Kriya Yoga, after years of reading and practice, is how stubbornly practical it is. Yogananda wasn’t interested in building an intellectual system. He wasn’t trying to win philosophical debates. He wanted to give people a tool that worked.
He often compared the spiritual path to a science experiment. You don’t have to believe in electricity to flip a switch and get light. Similarly, you don’t have to believe in God, chakras, or astral planes to practice Kriya Yoga and experience its effects. The technique, properly practiced, produces results that speak for themselves.
That’s what drew me in, and it’s what keeps me sitting down on the meditation cushion even on mornings when my mind is a mess and my motivation is thin. Not belief. Not hope. The quiet, accumulating experience of something real shifting inside.
If you’re curious, pick up Autobiography of a Yogi. Read Chapters 26 and 34. Let Yogananda’s own words land in you. And if something stirs, if some deep part of you recognizes what he’s describing, then follow that thread. It knows where it’s going, even when you don’t.
