“Long Ek Ong Kars” are one of the cornerstone mantras within the Kundalini Yoga System.
How it Works and What it Does:
This was almost the only mantra Yogi Bhajan taught during his first year in the United States in the late 1960’s. It is extremely powerful and energizing when done correctly. (“Correctly” means with full concentration, accurate rhythm, and proper pronunciation—and Neck Lock applied.)
These eight syllables are the “code” letters, the direct personal phone number connecting you, the creature, with your Creator.
It has been said that a person can attain liberation by chanting this ashtang (eight-part) mantra correctly for 40 days, for two and one-half hours before sunrise (the ambrosial hours).
The ambrosial hours between 4-6 am are the ideal and most effective time of day to chant this mantra.
Ek Ong Kar Sat Nam Siri Wahe Guru
(Ek Onnng Kaaar, Sat Naaam S’ree, Wha HayG’roo)
1) Sit in Easy Pose with a straight spine. Or, you may sit in a chair with a straight spine and both feet flat on the floor.
2) Place the hands in Gyan Mudra (thumb and forefinger touching) or rest them in the lap.
3) Apply Neck Lock. Lift the chest and gently stretch the back of the neck straight by pulling the chin toward the back of the neck.
4) Close the eyes and focus them into the middle of your forehead, the seat of the third eye.
5) Optionally, as you chant each syllable, you can concentrate on each chakra, from the first to the eighth.
Meaning of The Mantra:
Ek (One) Ong (Creator) Kar (Creation)
Sat (Truth) Nam (Name or Identity) Siri (Great)
Wahe (Beyond description, “Wow!”) Guru (Dispeller of darkness, Teacher)
1) Inhale deeply and chant Ek Ong Kar
Ek is vibrated briefly and powerfully at the Navel Point (not shouted). Ong is chanted in the back of the throat, vibrates the upper palate, and comes out through the nose. Keep the sound continuous as you move without a pause from Ong to Kar. Give equal time to Ong and Kar.
2) Inhale deeply again and chant Sat Nam until you’re almost out of breath, then reach for the Siri, which is brief. Sat is briefly and powerfully chanted at the Navel Point. Nam vibrates at the heart center. Siri is pronounced as if spelled S’ree; it is a short syllable.
3) Inhale a short half breath and chant Wahe Guru. Wahe is broken into two syllables, Wha and Hay. Wha is somewhat aspirated. Hay is extremely short. It becomes part of Guru which is pronounced as G’roo. Remember this is an “ashtang” mantra, in other words, it has eight, count ’em, eight keys, eight syllables, so the “hayg’roo” should be all run together, almost like one syllable.
4) Inhale deeply again to repeat the cycle. Continue for 7, 11, 31, or 62 minutes or 2 ½ hours.
Inhale deeply, hold the breath, and focus at the Brow Point for several seconds, then exhale and relax.
excerpt above adapted from: https://www.3ho.org/kundalini-yoga/meditation/featured-meditations/my-favorite-mantra-ek-ong-kar-sat-nam-siri-wahe-guru