As the deer pants for the water brooks, So my soul pants for You, O God. My soul thirsts for God, for the living God; When shall I come and appear before God? My tears have been my food day and night, While they say to me all day long, “Where is your God?” ((Psalm 42:1–3))

[The psalmist] is thirsting for God. In fact, he is so thirsty he is using his tears as food. We, too, have spiritual senses: taste, hearing, and sight. When your soul is thirsting for the living God, you won’t be satisfied with substitutes. Don’t feed on your feelings, because you will poison yourself.

  – Warren W. Wiersbe, Prayer, Praise & Promises: A Daily Walk through the Psalms, (Grand Rapids, MI: Baker Books, 2011), 114.