The nature of salt is salt, or it is nothing. The essence of salt is its action. By itself it has no purpose.
Salt is there for the sake of the whole.
Whoever receives God's life and grasps the nature of his future has taken on the character of salt. What is important to God is genuineness. He does not expect anyone to adopt an attitude that is not in accord with his inner self and feelings. Christ sees in his friends those who have his spirit, who breathe his life. The powers of the future world are at work in them, revealing unconditional love, righteousness, and purity.