“This is a meditation in which you have to be continuously alert conscious aware. Whatsoever you do, remain a witness.” Osho
Osho Dynamic Meditation lasts for one hour and has five stages.
It can be done alone but is much more powerful when it is done in a group. When doing this meditation in a group, the meditation remains an individual experience. Keeping the eyes closed, one remains oblivious of other participants around. Using a blindfold can be helpful to keep your attention focused inward. It is best to have an empty stomach and wear loose comfortable clothing.

This meditation technique has been scientifically designed by Osho. It needs to be done in its complete form, with nothing shortened or omitted.
Best to be done in the early morning 21 day cycle is recommended.

The Instructions
First stage 10 minutes
 Rapidly in and out through the nose, let the breathing be intense and chaotic. The breath should move deeply into the lungs. Breathe vigorously and change the rhythm. Do this as totally as you possibly can, without tightening up your body. Make sure neck and shoulders stay relaxed. Continue on, until you literally become the breathing, allowing breath to be chaotic. Avoid a repetitive or systematic breath pattern. Once your energy is building, it will begin to move your body. Allow these body movements to be there. Use them to raise even more energy. Moving your arms and body in a natural way will help your energy to rise. Feel your energy building up. 
Be total, give everything and never slow down.

Second stage 10 minutes

Let your body take over. Loose control. Give your body freedom to express, whatever is there. Let go of everything that needs to be thrown out. Go totally mad. …Sing, scream, laugh, shout, cry, jump, shake, dance, kick, and throw yourself around. Hold nothing back, keep your whole body moving. A little acting often helps to get you started. Never allow your mind to interfere with what is happening. Remember to be total with your body.

Third stage 10 minutes
Shoulders and neck relaxed, raise both arms high above the head without locking the elbows. With raised arms, jump up and down shouting the mantra HOO…HOO…HOO HOO…HOO….from the bottom of your belly. Jump in such a way, that you land on the flats of your feet, and the heels touch the ground. Each time you land on your feet, let the sound hammer deep into the sex center. Give all you have. Exhaust yourself completely.

Fourth stage 15 minutes
Freeze where you are, in whatever position you find yourself. 
Remain silent just like a rock. In that moment of silence and stoppage, energy will be there. Don’t arrange the body in any form, a cough, a movement, anything will dissipate the energy flow and your effort will be lost. Be a witness to everything that is happening to you.
Fifth stage 15 minutes
Express whatsoever is there, dance, move, enjoy! 
Carry this aliveness with you throughout the day.