The Rule of Thirds is perhaps the most well-known ‘rule’ of photographic composition. It is one of the first things that beginner photographers learn about in classes on photography and rightly so as it can help you create well balanced and interesting shots.
The basic principle behind the rule of thirds is to imagine breaking an image down into thirds (both horizontally and vertically) so that you have 9 parts.
The theory is that if you place points of interest in the intersections or along the lines that your photo becomes more balanced and will enable a viewer of the image to interact with it more naturally.
Most of modern cameras and mobile phones have an option to activate that grid.
As you can see rule of thirds helped to capture the rock on the photo in a way that is more pleasing to look at.