From just one candle, you can light a million candles without putting strain on the first candle. From one awakened being, you can set light into a million souls, so powerful is the light.
If you go into a room full of light, but outside is darkness, and you open the curtain, that darkness won't come in. But if you go into a room which is dark and you open up a little tiny bit of a curtain, it will fill the whole room with light. Such is the power of the light.
We are this light and we must discover this.