Sayings of Ramakrishna 94

It is fabled that the pearl oyster leaves its bed at the bottom of the sea and comes up to the surface to catch the rainwater when the star Svâti is in the ascendant. It floats about on the surface of the sea with its mouth agape, until it succeeds in catching a drop of the marvelous Svâti-rain. Then it dives down to its seabed and there rests, till it has succeeded in fashioning a beautiful pearl out of that raindrop. 

Similarly, there are some true and eager aspirants who travel from place to place in search of that watchword from a godly and perfect preceptor (Sadguru) which will open for them the gate of eternal bliss, and if in their diligent search one is fortunate enough to meet such a Guru and get from him the much-longed-for logos, which is sure to break down all fetters, he at once retires from society, enters into the deep recess of his own heart and rests there, till he has succeeded in gaining eternal peace.