Meditation is not concentration

Meditation is not concentration. It is simple awareness. You simply relax and watch the breathing. In that watching, nothing is excluded. The car is humming - perfectly okay, accept it. The traffic is passing - that's okay, part of life. Your fellow passenger is snoring by your side - just accept it. Nothing is rejected, You are not to narrow down your consciousness.
... A meditation in which you need certain prerequisites, in which certain conditions need to be fulfilled, is not meditation at all - because you will not be able to do it when you are dying. Death will be such a distraction.

Osho in "Body Mind Balancing" page 138