"The number 2" is a symbol of the duality of the world: the physical world and the spiritual world.

It is also a symbol of the dual nature of man - the "earthly", carnal, soul, living a materialistic life, and the "heavenly", spiritual, righteous, living the fulfillment of God's Will, His Commandments.

The number 2 (20) is a symbol of the Law of the struggle of opposites: Good and Evil, Truth and Falsehood, Life and Death, established by God.