The fact that offerings were accompanied by salt teaches us that our approach to G-d must incorporate the various properties of salt:
• Taste: Salt brings out the taste in foods. Thus, salt is compared to the inner dimension of the Torah, the study of which adds vitality and “taste” to our observance of the Torah’s laws.
• Permanence: Salt is a preservative; it itself never decays. Similarly,our approach to G-d must be consistent and persistent. This is achieved when we stir the essence of our soul and reveal our super-rational love for G-d.
• Cleansing: Salt is a cleanser and disinfectant. Similarly, our approach to G-d must be accompanied by an attempt to purge our lives of all negative forces.
• Healing: The prophet Elisha healed the poison water of Jericho with salt. Similarly, our approach to G-d must serve to “heal” our animal drives, by eliminating their materialistic orientation and directing them toward Divinity.
-- Daily Wisdom