The Sun, besides bestowing a native with reputation, fame & visibility, also gives him a brilliant concentration, a powerful immune system & strong sense of literature and arts.
As I have heard from astrologers, praying to the Sun via the Gayatri Mantra actually repairs all the planets. I mean to say that all the bad guys (Saturn, Rahu, Ketu etc) do not disturb the native if one worship Sun by Gayatri Mantra.
Moving on to Moon now. Moon or Chandra as said in Vedic astrology, is the planet of coolness. I have witnessed people with Cancer ascendant to be extremely cool & contented with life. They are pretty satisfied with things in their lives. They are not very striving if the ascendant is not aspected by some other planet like Mars or Mercury which actually push a native to work hard. When the planet Moon or the ascendant Cancer is aspected by some bad guy, the coolness moves to carelessness. A weak or debilitated Moon(in Scorpio) will bring unhappiness & loss of coolness. If the Moon does not have a planet with it, or aspecting it (say Mercury, Jupiter, Sun, Mars, Venus, Saturn), it is weak. If Moon does not have any planet before or after it, again it is weak. If Moon is aspected by Rahu or Ketu, it brings unnecessary worries & lack of stable mind to the native!
Moon is extremely strong when the birth takes place on the full moon day! It can alone ward off other evils of the horoscope, alone! It is also strong during Shukla Paksha (brighter moon cycle). If the native is born in Krishna Paksha, the moon get bad, but if it is accompanied by some good guy - Jupiter, Mercury, Venus or is aspected by them, it turns to good!
Moon is natural benefactor of luck. A good moon gives extreme satisfaction to the native. If well placed with Jupiter, it will take the native to the heights of spirituality.
Tomorrow, I will tell you more about Moon & how to strengthen it!