Anyone who has had a spiritual experience knows that such an experience cannot be described with mere words and that spiritual experiences are much more profound relative to the psychic ones. Different prophets have revealed different spiritual disciplines to their followers to attain spirituality.
Fire is both spiritual as well as physical.
It is the source of all Creation. No Zarathushti ritual is complete without the presence of Fire. The answer is No. Spirituality is an inherent, evolutionary quality gained by perseverance on the steep climb towards Frasho-Kereiti. It is important to remember that none of the prophets ever acquired their spiritual wisdom in a university.