Fasting creates taqwa, which is a higher awareness and consciousness of Allah, similar to ihsan, of which the Prophet ﷺ said, ‘Ihsan is that you worship Allah as though you see him, and if you do not see him then indeed he sees you.’
The life of the Prophet ﷺ was one of calmness: calmness and patience in everything even when things did not go to plan. He was accepting, tolerant and patient.
The exterior teaching of religion is the key to the door to the inner world of spirituality. The interior (spirituality) cannot be achieved without the exterior but the danger is that we stop at the door and do not move forward.