The quickest possible prediction in Astrology is through a persons Zodiac sign. There are various schools of thoughts which determine Zodiac sign by different methods. Like in Western Astrology, zodiac sign is according to the date of birth. In another school of thought it's the sign occupied by the Sun. In Vedic Astrology it's the sign occupied by the Moon.
Now the question arises why the ancient sages has given the moon sign such importance, why not sun sign or any other planets sign. First lets us see what it means when we say a planet is in a particular sign. Vedic Astrology takes nine planets viz Sun, Moon, Mars, Jupiter, Mercury, Venus, Saturn, Rahu & Ketu. Each planet has its own result & responsibility. These planets occupy the zodiac signs, the results of these planets come through the sign they are placed in & the house they are placed in a chart. (there are 12 houses in a chart). Astrology is not that simple, this is just the tip of the iceberg, there are hundreds of other things which should be taken into consideration before getting a clear result. What does each planet signify:
Sun: Father & Authority.
Moon: Our Mind & Thoughts.
Mars: Our Actions & Motivation.
Mercury: Day to day Intelligence.
Jupiter: Gurus & Higher Intelligence.
Venus: Our relationships & happiness.
Saturn: Hard work & misery.
Rahu: Our Obsessions & illusions.
Ketu: Sprituality.
Now the question arises, why moon sign is taken as our zodiac sign. It's because it controls our mind & thought. We all know the power of thought. Suddenly we think of a chocolate, what we do, we go and eat a chocolate. For that matter, we go on fulfilling what our mind desires. It can be said that we are what our mind is. A good person's mind says to him to help others and he helps other people. A criminals mind suggests a person how can he take advantage of other person and he does so.
Moon is neutral in itself, its like clear & pure water. Moon takes the characteristics of the sign its in, the planets it's in conjunction with, the planets its being aspected by. So Moon gives results according to the sign its in. Thus moon sign gives us an indication of how a persons mind and thoughts would be. There are 12 zodiac signs, each sign has its own characteristics. These are as below:
1) Aries: Aries is the sign of action, so the mind is always thinking about taking action. This person can be fond of sports like cricket, basketball, hockey and all types of sports. They have a competitive nature, and these people take impulsive actions.
2) Taurus: This person has a stable mind. These people have inclination towards hoarding money, they find their mental balance through acquisition of wealth. They are hard working and do very well in finance industry.
3) Gemini: This person is jack of all trades. This person has the ability to open up many different works at the same time, and also execute them at the same time. These people may seem eccentric to other people but these are intelligent people. These people love to communicate.
4) Cancer: These people very protective about their feelings. They would not let everybody know how they are emotionally. Therefore sometimes these people are mis understood as snobby & arrogant. The people who they are close with knows their true nature, which is of giving & taking care of others. They work very well in hospitality & social service industries.
5) Leo: These people crave for them and their work to be admired. They think that whatever work they have done is the best, they have the natural gift of justifying that their work is the best. Therefore these people do excellent in PR, Marketing, Entertainment industries.
6) Virgo: These people are very analytical and calculative. These people love dealing with conflicts. These persons loves to make world a better place, by providing their service to the greater wellbeing of the society. They do very well being a doctor, a healer, Ayurvedic practitioner.
7) Libra: These people want love and harmony among their relationships. They love to have relationships and are romantic in nature. They go after beauty and aesthetics and are fashionable. Acting, Fashion, Designing, Home Decoration industries are suitable for these people.
8) Scorpio: These people may have many secrets with them. They are intense personalities, they are clear in their relationships with other people, either they have it or they don't, its white or black no shades of grey. They do not forgive people doing wrong to them, they will need an apology right there. These people are deeply love their partner. They can do good in investigative fields like police, detectives, journalists, tantrik gurus etc.
9) Sagittarius: These people like to be with people who have righteous values & morals. They may get angry over injustice in the world, they would fight to bring that justice to the world. These people think they can preach the world about the higher truth, about god. Consulting as a career is good for them.
10) Capricorn: These people are structured and organised. These guys do not joke around they are more of serious nature and are mainly concerned with work, work & work. These people crave for status in the society and for that they are very determined. Management as a career is good for these people.
11) Aquarius: These people are unconventional in the way they think. They have good network circles and are able to connect with many persons in their work field. They would not accept any rule just because it's a rule, they need to understand that why it's a rule and what's the logic behind it for it being a rule. These people are good at doing their own thing rather than working for someone.
12) Pisces: These people are intuitive and generally have connection with spirituality. They are good at imagination and creativity. Their work has their quality of creativity, in a sense that when they create something its unique and never thought of before. These people are helpful in nature, they do not even hesitate to help someone financially, they love to donate money.
Now the above predictions are just very small part of the big picture. Aspects & Conjunctions of other planets with moon changes things to a great extent. Moreover Moon is one of the nine planets and the rest of eight planets are also having their influence on a person. So saying that this zodiac sign person would behave in this particular way would not always hold true, having said that I want to add that moon sign influence is always there on a person. Astrology is complex and could not be understood by swimming on the surface of the ocean, it takes to go deep to the ocean bed.
You would need any Indian Kundli making software, many of them are available as free apps. Enter your birth details, and look at the Lagna Chart, there spot where Moon is written. There would be a number written in the box where moon is written. This number is your zodiac sign. The above explanation of various zodiac signs has been numbered. Like if moon box has number 9 written in it than check, in this article which zodiac sign has number 9 written before it, here its Sagittarius. This way you can determine your zodiac sign.