1. Viryabala of Chandra (Verility of Moon)

The state of moon determines the beneficence of all the activities covered under Astrology. From new moon to the full moon, it starts waxing and brightness increase day by day. From full moon to new moon, it starts wane while the strength and brightness gets diminished. The Moon reaches 0 to 180 degrees from the Sun with waxing and waning halfmoon phase commence from 180 degree to 360 degrees. The exact benefic nature of moon falls between 270 degrees to 90 degrees, the Moon is a malefic. From waxing half-moon to waning half-moon, the Moon is nourished with energy that enhances the aspecting areas with good effects. From waning half-moon to new moon, the Moon becomes faints lacking strength and becomes malefic. According to Brihat Parashara Hora Sastra, the moon possesses Ayana Bala of 40 virupas which is considered to be strong. It becomes active effective benefic when falls between 120 to 240 degrees from the Sun, during which potency point of its Ayana Bala is 40 virupas or greater. The Ayana Bala of Moon becomes 20 virupas or less when it transit through 300 to 60 degrees from the Sun, which is deliberated as an effective malefic.

[...]^[1]

Astrology consider the positional strength for all he planets other than moon. Though certain innate strength of other planets becomes decisive, the powerful moon gets the greatest connotations all the time.

[...]^[2]

Without the strength of Moon in a Natal chart, the benefic combinations will not make any impact upon the native. This verse is very illustrious in Astro-Science, wherein the Moon has been compared with the stump of the tree and all other planets are equated with its branches. If the stump of the tree stands potent, the branches also become flourished and causative for bearing a plethora of fruits and nuts. When the moon becomes ineffective, the sturdy benefic planets such as Mercury, Jupiter or Venus cannot provide promising results.

[...]

Even the king become subject to absence of sufficient potency of the Moon. This aspect has been mythologized by the Lord Brahma who weighed and substantiated the potentiality of moon.

 

Footnotes and references:

[1]:

P.S.Purushottaman Nampoothiri (2005); Madhaveeyam, S.T.Reddiar, Quilon; Chap5-; Ver-29; pp-85.

[2]:

Ibid, Ver-33-34, pp-86.