Duality brings to life the Holy Trinity. It comes from 0 (transparency ), passes through 1 ( yang , clarity , activity ), 2 ( yin , darkness , passivity ) and finally reaches a point of equilibrium between the two last numbers.
In addition, one may be regarded as the Father, 2 as a mother , and 3 as the Son.
Consequently, the 3 is the child, result of the connection of opposites. Creation of the son , idea is expanding due to the merger of opposites complete assimilation of and interaction with everything.
The concept of the Trinity as the perfection and balance can be found in many cultures and mythologies.