Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) once mentioned:

In the mubaarak Hadith of Rasulullah (sallallahu ‘alaihi wasallam), salaah is referred to as the ‘pillar of deen’. The reason for salaah being called the pillar of deen is that all the other aspects of a person’s deen depend on his salaah and are linked to his salaah. Through performing salaah, a person is blessed with the true understanding of deen and is also blessed with the ability to carry out righteous actions. Hence, the blessings one receives is based on the quality of his salaah. Therefore, encouraging people to perform salaah and striving to help them create humility and devotion in their salaah is indirectly an effort to revive the entire deen in the lives of people. (Malfoozaat Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) pg. 127-128)