XVI. What is seen on looking back into Man's repeated Earth-lives

When the Sun about Christmas-time begins to gain increasing power for the Earth, this is its action in the physical earthly sphere, exhibited rhythmically in the cycle of the year; it is an expression of the spirit in Nature. The evolution of mankind is one unique part in a so-to-speak gigantic world-year. In this world-year it is World-Christmas or ‘Holy Night’ when the Sun does not merely act on the Earth through the spirit of Nature, but when the soul of the Sun, the Christ Spirit, comes down from above into the Earth.