Is Profession a Job, Occupation or Trade?

With a review on history of ethics in the world, ancient Iran and Zoroastrian and Islamic instructions, and with references to ethical customs and rules in Persian literature and poetry, the word profession has been considered in comparison with application of occupation, work, job and trade. It should be noted that services of every occupation (such as carpentry, blacksmiths, car repairment, etc) that receives money(reward)in return, would be occupation, work or trade. But, superior or sublime services that can not be paid for and are provided in sincerity, moral and celestial states which are not compensated with material and worldly rewards(such as medical, religious, and judiciary works, teaching, arts, literature and few others)are considered profession, highly esteemed and equivalent of the meaning of keesh. Profession, and its Persian equivalent keesh, consists of few groups of highly valued services, as in comparison with other occupations that eventhough have unions, syndicates and ethical codes, are not considered as keesh, mission or noble profession.