Time
Time means mind. When the mind stops, time stops. You may have sometimes felt it. When there is no thought in your mind, is there any time left? The procession of thoughts creates time.
This is the most fundamental insight of Albert Einstein's Theory of Relativity: that time is a flexible phenomenon, it depends on your moods. If you are happy time goes by fast, if you ate miserable time slows down. If you are sitting by the side of a dying man the night seems to be almost unending -- it seems as if the morning is not going to happen at all. And if you are sitting by the side of a woman or a man you love, then it seems time has got wings; it is flying. Hours pass like minutes, days pass like hours, months pass like days.
As far as the clock is concerned it makes no difference whether you are joyous, sad, happy or miserable. The clock moves unconcerned with you. So there ate two things to be remembered: clock time is one thing, totally separate from psychological time; psychological time is within you.
Einstein was not a meditator, otherwise his Theory of Relativity would have reached a higher peak. He only says: When you are joyous time goes fast, when you are miserable time slows down. A great insight, but had he been a meditator the world would have been immensely enriched because then he would have said one thing more: If you are absolutely without mind, just pure consciousness, time stops completely, disappears, leaving no trace behind.
-Osho, "Theologia Mystica, #3, Q2“