The magic number

"Number is the ruler of forms and ideas, and the cause of gods and daemons"
Cit. Pythagoras.

I started studying art when I was very young.
I couldn’t even read, but I would spend a lot of time looking at images and making drawings out of them. One thing was very clear to me, since then: 3 is a crucial number in composition.
Years later, when I could read, I found out that 3 is an important number in every field of knowledge: it’s recurring in music, in history, in mythology, in psychology, in philosophy. 
It’s the first number that forms a geometrical figure, the triangle.
It’s the number of time (part, present and future; or beginning, middle and end). 
It’s a sacred number in many religions.
In visual arts, 2 elements can be together or opposite, but 3 elements give to the image a sense of balance and structure: 3 elements are pleasing to the eye, cause they bring harmony.
So next time you take a photo with 3 elements in the composition, be aware of the sense of balance and stability you’re giving to that photograph.