One is for unity.
Two is representative of The K’ua, the Two. Determinants, the yin-yang.
Three is the triad that contains the beginning, a middle and an end.
Four as in the seasons, like a square going from summer to winter, year after year.
Five is the pentagon, the power of the circle and the star.
Six represents the six senses of taste, touch, smell, sight, hearing and mind.
Seven represents completeness as in the seven days of the week.
Eight is many and infinity.
Nine is the most auspicious of all numbers.
Zero has much intensity, it symbolizes the Void and is the Divine Essence.
Each has its own meaning.
Some auspicious, some unlucky.
It all boils down to superstition and culture.
Many wish for money with endless zeros.
Others look for a soulmate, one and only.