For an oil lamp to burn, the wick has to be in the oil yet out of the oil. If the wick is drowned in oil, it cannot bring light. Life is like the wick of the lamp; you have to be in the world yet remain untouched by it. If you are drowned in the materialism of the world, you cannot bring joy and knowledge in your life. Thus by being in the world, yet not drowning in the worldly aspect of it...