The Moon or Chandra is the queen of the planetary world. The Moon represents mainly Mind and Mother and has an important bearing on the growth, nourishment, mental disposition and the personality of a person.  The Moon has to be strong and well placed in the horoscope for the native to enjoy the positive aspects of these significations. 

In fact, the placement of the Moon in an individual’s horoscope provides the clue to his mental disposition. 

Where the Moon is weak and strong
The Moon is strong in his own sign, Cancer and in the 3rd degree of Taurus where it attains exaltation. The Moon is also strong when waxing between the 10th lunar day of the bright half and the 5th lunar day of the dark half of the month.  In the dark half of the lunar month, it requires the good aspect of Jupiter to be strong enough to produce favourable results.  

 If the aspect is afflicted, the native would be aggressive and impulsive. He would indulge in vices like gambling and womanizing and due to his bad conduct, he would become a mental and physical wreck

As a benefic strong in Kendras and Moolatrikonas
The Moon gives good results when it is placed in Kendras (quadrants) and Moolatrikonas (trines) and in Upachaya Houses when it is a malefic.

The classical Astrological work, Jataka Parijata says that the Moon is strong in Cancer, Taurus, his weekday, his Drekanna, his Hora, his Navamsa, in the end of a sign, when aspected by benefics, in the 4th House and in his passage to the South of the Equator. 

Aspects between the Moon and other planets
Aspects between the Moon and the other planets become good or bad depending on their placements, strengths and mutual relationships. 

A study of aspects between the Moon and the other planets provides the clue to understand the psychology and the physical disabilities of a person. 

Moon in aspect with Sun
The Moon when in good aspect with the Sun confers sound health, indomitable courage, efficiency, perseverance, ambition and enterprising spirit. 

Moon and Mars
When the Moon – Mars aspect is good, the native would be courageous, bold, proactive and dynamic. The native would be healthy and physically strong. He would be attracted to sports and entertainment. If the aspect is afflicted, the native would be aggressive and impulsive. He would indulge in vices like gambling and womanizing and due to his bad conduct, he would become a mental and physical wreck. Moon – Mars aspect or conjunction is generally considered bad for a female. 

Moon and Mercury
The Moon in good aspect with Mercury gives an agile mind, intelligence, intuition and reasoning power. If this aspect is afflicted, the native would suffer from absentmindedness, indecisiveness and nervousness and become self-opinionated.

Moon and Venus 
The Moon in good aspect with Venus gives a cultured mind, an interest in fine arts, amiability and delicate features.  If this aspect becomes bad, one would become passionate, amorous, oversentimental and prone to Diabetes and urinary troubles. 

Moon and Jupiter
The Moon in good aspect with Jupiter confers good health, a positive, cheerful and liberal mindset and makes one truthful and righteous.

Moon with Saturn 
When the Moon -Saturn mutual aspect is good, the native would develop resistance against disease, endurance and patience. When the aspect turns bad, the native would become timid, stubborn, emotionally unstable and even prone to psychological problems.