Nadabrahma Meditation is a one hour meditation in three stages, that was adapted from an ancient tibetan method. It can be done any time of the day or night, alone or with others. It is good to do this technique with an empty stomach.

The Instructions

1st Stage 30 minutes
Sit in a relaxed position with eyes closed and lips together. Start humming, loudly enough to be heard.
 Find a pitch for humming that will create a vibration.

2nd Stage 15 minutes (7 1/2 + 7 1/2)
Palms upwards start moving your hands forward from the belly. Then separate them so they circle outwards until they come back together at the belly. Continue with this movement. The movement should be very slow, so that at times it appears as if there is no movement at all. Feel that you are giving energy out to the universe. After seven and a half minutes there is a little gap in the music to let you know that you can now turn your palms down and reverse the circular motion of your hands, so that they now divide and circle outwards sideways from the belly and come back together in front of it. Feel that you are receiving energy from the universe.

3rd Stage 15 minutes
Remain sitting or lie down absolutely quiet and still.

NADABRAHMA for couples
Osho has given a beautiful, tantric variation of this technique for couples. 
Partners sit facing each other, covered by a bedsheet holding each others crossed hands. 
It is best to wear no other clothing. 
Light the room only by four small candles and burn a particular incense, kept only for this meditation. 
Close your eyes and hum together for thirty minutes. After a short while the energies will be felt to meet, 
merge and unite. 
Continue in the 2nd stage as explained above, while still facing each other under the sheet, then in the last stage lie down together and be still. 
”When you chant a sound your body starts vibrating; your brain cells particularly start vibrating. If rightly done youe whole brain becomes tremendously vibrant, and the whole body also. Once the body starts vibrating and your mind is already chanting, they both fall in a tune. A harmony – which is ordinarily never there – between the two. When body and mind are both together, you are free from the body and the mind – then the third element, which you are in reality – call it soul, spirit, “atma”, anything – that third element is at ease because it is not being pulled in different directions. The body and mind are so much engrossed in chanting that the soul can slip out of them very easily, unobserved, and can become a witness – and can stand out and look at the whole game that is going on between the mind and the body. They become drunk with chanting, and you slip out”. OSHO