Those great arches of Gothic may not have been developed if the Medieval designers possessed your attitude. You need to study the theology of the time. This process and study should gain you a basic understanding in 20 years or so. It does not end there. It is basically a lifelong committment.
Every project becomes a learning experience.
The task is humbling. The Early Church was socially orientated. Our art and architecture has to reflect this by satisfying these new needs. And oh yes, you need to study Canon Law regarding the legal structure of the Church. There are some canons about the powers of your Bishop.