This represents the infinity. It is both Sookshma and Brihad i.e. subtle and vast. It has unending (Anant) and unlimited (Aseem) power and it is the source of origin of every thing. All the stars in the sky, mass of light, entire solar system, galaxies, reproductive power, transit of planets, their orbits are the matters of the unlinited Universe. The energy of the whole world is embedded in it. You may go on a trip around the world or the globe, you will come to the point, from where you had started. So, the zero has the unlimited power since there is every thing in it.
Number 1 is used as a symbol of theory of positivity and dynamism. This number is used in word also that expresses the infinity and unspoken. This represents ego. It represents soul Atmatva, self - dependence, excellence, sanctity and administration. From religion point of view, the Sun, the lord of all the planets, is thought to be the God Almighty. Therefore, this number represents God also. This denotes synthesis and integrity of the things. A man is a unit and part of life, so this number represents the man also. This has originated from Zero and represents the Sun.
Number 2 represents contrariety. So, both dynamism and idleness are there in it. This indicates both masculine and feminine. This represents both success and failure. Besides, it represents win and defeat, profit and loss, positivity and negativity and Poornima and Amavasya also.
Number 3 is a 3 dimensional number. It represents three qualities of a man-wisdom, strength and consciousness. It represents Brahma, the creator, Vishnu, the protector and Mahesh, the destroyer. This represents also three members of a family-mother, father and the child. The number symbolises the soul, body and the mind. This denotes vastness. This represents planet Jupiter.
Number 4 represents reality and stability. It is a square-shaped and cubical number and represents the world. It indicates materialistic outlook, mundane trends, logic, cause and science. It signifies feeling and wisdom of a person. This is a combination of Swastik, Vidhi Chakra and the order of numbers. This signifies the difference between conciousness, wisdom, conscience, spirituality etc. Rahu / Herschel is its planet.
Number 5 is the symbol of vastness. This represents the mutual relation of the mental faculty and decision-making capacity of a person. This renders wisdom, conscience and thinking power. This symbolizes justification, seed sowing, reaping of harvest and food grains. In the mundane world, it is the symbol of reproduction, Pitritva and punishment. So, this number is like the bead of a pomegranate having many qualities in it. This is the symbol of Mercury.
Number 6 symbolizes mutual cooperation. This enables the conjugal life of a couple and indicates the reciprocal love between the two. It keeps the mutual understanding balanced. This represents world, worldly pleasure, spiritual world and spiritual pleasure. This makes the mental faculty and physical capability blossom. This shows the divine quality, to examine the mental faculty, sympathy, etc. This represents para psychology, telepathy etc. It gives capacity to cooperate, peace, harmony and quality of satisfaction. This signifies aestheticism and truth. This helps achieve goal and symbolizes the cohabitation and mutual relation between a man and a woman. Venus is its planet.
Number 7 signifies completeness. This also signifies the time, space, place and distance. By this number, one may predict weakness, senility, tolerance, steadiness and immortality. This symbolizes Saptadwip, Saptayug and seven days of a week. This signifies the seven kinds of promises, maturity of a man or a woman and different forms of sound and colours. Completeness of a man or a woman, his or her progress, wisdom, balance of mind etc. are also indicated by this number. This is the symbol of planet Neptune or Ketu.