Consciousness is like that light in darkness: wherever it is, it has its radius, it has its circle, it has its influence. And darkness will not come there. It will stay away just that far, and take it (consciousness) wherever you can. And the darkness dare not impede in its path, that's what consciousness is, that's what reality is, that's what realization is. And even if you can do it once in your life, at least the candle is lit.