Question

Why we need golden ratio?

Answer 1

The Golden Ratio is a mathematical ratio. It is commonly found in nature, and when used in design, it fosters organic and natural looking compositions that are aesthetically pleasing to the eye.
Our brains are seemingly hard-wired to prefer objects and images that use the Golden Ratio. It’s almost a subconscious attraction and even tiny tweaks that make an image truer to the Golden Ratio have a large impact on our brains.
The Golden Ratio can be applied to shapes too. Take a square and multiply one side of by 1.618 and you get a rectangle of harmonious proportions.