According to Osho, a curve is the hidden circularity of existence: what seems a straight line is merely a tiny arc of an immense circle, which is why a truly straight line cannot be drawn. He extends this insight to mind and language—thoughts and words move in circles. Meditation is the austere leap out of this circular motion into wordless awareness.
A curve is a small piece of a huge circle, and just like that, our thoughts and words loop around until we step into silence.