Parshas Vayera

[Hilchos Shabbos]

"מזמור שיר ליום השבת, טוב להודות לד'..."

"Let us marvel at the sunlight, this golden pool of blessing, whose ultraviolet radiation acts on sterols in the skin to produce vitamin D. This light is not merely color, but a real "material" composed of a number of different kinds of light, each of which performs valuable functions. This precious stuff warms the earth, and acts on the chlorophyll of plants to produce food, and provides the light which enables us to see and enjoy the Universewhich the Creator made with the intention that we should view it."

The Marvelous Wonders of Creation, by Rabbi Mordechai Menachem Reich ZT"L (Mordechai Menachem Mendel -en Dovid Aryeh), adapted from the works of Rabbi Avigdor Miller, ZT'''L