It's when a sirit goes in to someone's body and makes that spirit take the body over . However if a bad spirit goes in side you you will become a demon for life
It seems you might be referring to the word "profession," which typically refers to a type of job or career that requires specialized training, skills, and qualifications. Professions often have Codes of Conduct and ethical standards, and may require professional licensing or certification. Examples of professions include doctors, lawyers, and teachers.