Law for a fact

Richard Yeo has written:

'The structure and content of monastic profession' -- subject(s): Benedictines, English Benedictine Congregation, History, Monasticism and religious orders, Profession (in religious orders, congregations, etc.)

'Edinburgh Encyclopedia'

Not only is the clergy regarded as professionals, but in fact they (and religious) are the reason for the creation of the concept of "professions". The word "profession" comes from the affirmation of faith or the vows that a religious make upon enter the religious life. Furthermore, the clergy was the first "profession" which requited the rigorous studies and formation that are involved in the preparation.

IT IS USED IN RELIGIOUS AND NON RELIGIOUS CEREMONIES , it is a profession for some people , it is the easiest way to memorize things and it is also a mean of relaxation

Religious Profession, usually during a Mass, is when a woman takes her vows as a nun.