The Strong’s definition for lust is: a strong desire and intense craving for something. Lust can be positive and not always negative. David expressed strong desires in several of his psalms.
Read this with your ears tuned to his heart-words. Psalm 63:1 says, “O God, You are my God; early will I seek You; my soul thirsts for You; my flesh longs for You in a dry and thirsty land where there is no water.”
Psalm 42:1 was written about a deer about to die unless it can get to water. It says, “As the deer pants for the water brooks, so pants my soul for You, O God.” David used the word ‘pant’ to express his heart’s desire.
Ephesians 4:22 gives us the root to derailed lust. It says, “That you put off, concerning your former conduct, the old man which grows corrupt according to deceitful lusts.” As I meditated on this verse, I camped on ‘deceitful lusts.’