Psalm 38:10 (b) In times of distress, weariness and discouragement the heart has a deep desire for someone, or something, to satisfy that craving.

Psalm 42:1 (a) This represents a heart hunger for the presence of GOD, and the fellowship of the Lord. It is compared to the deep craving of the deer for a drink of water. (See also Isaiah 21:4).

Amos 2:7 (a) By this we understand the deep longing of the sinner's heart for the wicked things of earth to satisfy his lusts and desires. It is compared to the thirst of an animal which causes it to seek out the water hole.