Near the mountain, there is a lake with clear, still water reflecting the mountain and the sky with pristine clarity. You can do the same. If you are calm and still enough, you can reflect the mountain, the blue sky, and the moon exactly as they are. You reflect whatever you see exactly as it is, without distorting anything. Sitting quietly, just breathing in and out, we develop concentration, clarity, and strength. So sit like a mountain. No wind can blow the mountain down. If you can sit for half an hour, enjoy sitting for half an hour. If you can sit for a few minutes, enjoy sitting for a few minutes. That is also good.