There is a pretty Indian fable to the effect that if it rains when the star Svati is in ascendance, and a drop of rain falls into an oyster, that drop becomes a pearl. The oysters know this, so they come to the surface when the star appears, and wait to catch the precious raindrops. When the drops fall into them, quickly the oysters close their shells and dive down to the bottom of the sea, there patiently to develop the raindrops into pearls. You should be like that. First hear, then understand, and then, leaving all distractions, shut your minds to outside influences and devote yourselves to developing the truth within you.
— Swami Vivekananda