You cannot find a better situation in which to meditate than while flying at a high altitude. The higher the altitude, the easier is the meditation. Hence, for centuries, meditators have been moving to the Himalayas to find a high altitude. When gravitation is less and the earth is very far away, many pulls of the earth are far away. You are far away from the corrupted society that man has built. You are surrounded by clouds and the stars and the moon and the sun and the vast space. So do one thing: start feeling one with that vastness, and do it in three steps. The first step is: for a few minutes just think that you are becoming bigger…you are filling the whole plane. Then the second step: start feeling that you are becoming even bigger, bigger than the plane, in fact the plane is now inside you. And the third step: feel that you have expanded into the whole sky. Now these clouds that are moving, and the moon and the stars—they are movingin you; you are huge, unlimited. This feeling will become your meditation, and you will feel completely relaxed and non-tense.