Osho on meditation

According to Osho, meditation is a state of watchfulness that has no ego fulfillment in it, something that –
... happens when you are in a state of not-doing. And that is the question: how to do that non-doing? If you ask how, you have missed the point, because "how" means doing. ... You will have to understand that no doing is going to help. In that very understanding, non-doing happens.
He said it is very difficult for modern man to just sit and be in meditation, so he devised so-called Active Meditation techniques to prepare the ground. Some of these preparatory exercises can also be found in western psychological therapies (i.e. gestalt therapy), such as altered breathing, gibberish, laughing or crying. His most significant meditation techniques are known as "Dynamic Meditation", "Kundalini Meditation", "Nadabrahma", "Nataraj". They have a strong physical element. He said Dynamic Meditation was –
... absolutely necessary for the modern man ... If people are innocent there is no need for Dynamic Meditation. But if people are repressed, psychologically are carrying a lot of burden, then they need catharsis. So Dynamic Meditation is just to help them clean the place. And then they can use any method ... It will not be difficult. If they, right now, directly try, they will fail.
He also reintroduced minimal parts of several traditional meditation techniques, stripped of what he saw as ritual and tradition, and retaining what he considered to be the most therapeutic parts. He believed that, given sufficient practice, the meditative state can be achieved and maintained while performing everyday tasks and that enlightenment is nothing but being continuously in a meditative state:
Nature has come to a point where now, unless you take individual responsibility, you cannot grow. More than this nature cannot do. It has done enough. It has given you life, it has given you opportunity; now how to use it, it has left up to you.
Meditation is your freedom, not a biological necessity. You can learn in a certain period of time every day to strengthen meditation, to make it stronger -- but carry the flavor of it the whole day.
First, while you are awake -- the moment you wake up, immediately catch hold of the thread of remaining alert and conscious, because that is the most precious moment to catch the thread of consciousness. Many times in the day you will forget -- but the moment you remember, immediately start being alert. Never repent, because that is a sheer wastage of time. Never repent, "My God, I forgot again!"
In my teachings there is no place for any repentance. Whatever has happened is gone, now there is no need to waste time on it. Catch hold again of the thread of awareness. Slowly, slowly you will be able to be alert the whole day -- an undercurrent of awareness in every act, in every movement, in everything that you are doing, or not doing. Something underneath will be continuously flowing.
Even when you go to sleep, leave the thread only at the last moment when you cannot do anything because you are falling asleep. Whatever is the last thing before you fall asleep will be the first thing when you wake up. Try it. Any small experiment will be enough to prove it. Just repeat your own name while you are falling asleep: half awake, half asleep, go on repeating ... Slowly, slowly you will forget repeating, because the sleep will grow more and more and the thread will be lost. It is lost only because you are asleep, but underneath your sleep it continues. That's why in the morning when you wake up and just look around, the first thing you will remember will be [the sound of your name]. You will be surprised: Why? What happened? You slept eight hours, but there has been an undercurrent.
And as things become deeper and clearer, even in sleep you can remember that you are asleep. Sleep becomes almost a physiological thing and your spirit, your being, becomes a flame of awareness, separate from it. It does not disturb your sleep; it simply makes your sleep very light. It is no more the sleep of the old days, when your house was on fire and you went on sleeping -- that was almost like a coma, you were so unconscious.
Your sleep will become thin, a very light layer, and your inside will remain alert. Just as it has been alert in the day, it will be even more alert in the night, finally, because you are so silent, so relaxed. The whole nuisance world becomes completely silent.
Patanjali, the first man in the world to write about meditation, says that meditation is almost like dreamless sleep, but with only one difference. In dreamless sleep you are not aware; in samadhi, in the ultimate state of meditation, there is just a little difference -- you are aware.