Stopper and Seal The Mouth Of Your Heart

Water in the boat is the ruin of the boat, (but) water underneath the boat is a support. Since he cast out from his heart (the desire for) wealth and possessions, on that account Solomon did not call himself (by any name) but “poor.”
The stoppered jar, (though) in rough water, floated on the water because of its windfilled (empty) heart. When the wind of poverty is within (any one), he rests at peace on the surface of the water of the world; Although the whole of this world is his kingdom, in the eye of his heart the kingdom is nothing.
Therefore stopper and seal the mouth of your heart, and fill it from the inward ventilator. Exertion is a reality, and medicine and disease are realities: the sceptic in his denial of exertion practised (and thereby affirmed) exertion.

The Masnawi, Volume 1 - 950