The sun is made of hydrogen and helium in a ratio of about 70 to 30. Its rays take about 8 minutes 20 seconds to reach the earth, and only about 51 percent of the energy it produces reaches the ground. The coolness of the pre-dawn hour comes from the silver content.
The sun is called the world's largest factory, the giver and taker of life, impartial to every religion, caste, rich or poor, the greatest messenger (its soft or hot rays announce the coming weather) and a karma karak that works through all 360 degrees without sending a bill. Since every Vastu principle is based on the sun, a person who says he does not believe in Vastu is in effect denying the sun.