When it comes to material food, if you eat too little, you will remain hungry like the crow and suffer ill-temper and anemia; if you eat your fill, your body will incur the penalty of indigestion.
Partake of God’s food, that easily digested nutriment, and ride like a ship on the spiritual ocean.
Be patient and persistent in fasting, be always expecting the Food of God.
For God, who acts with goodness and is long-suffering, bestows His gifts on those who are expectant.
The full-fed man doesn’t wait expectantly for bread, wondering whether his allowance will come soon or later;
but the foodless man is always asking, “where is it?” and expecting it hungrily and seeking and searching for it.
Unless you are expectant, that bounty of manifold felicity will not come to you.
(Jalaluddin Rumi, compilation The Essential Rumi)