week eight_body, spirit and soul

It is interesting to see the idea on lecture held this Monday that human body is consisted by three components: the body, the soul and the spirit. Sure to most people they generally believe in the idea that a person is consisted with both visible as well as invisible parts, but to me it was in fact the first time (maybe it is because of the religious factors) to see the idea of considering a man as a trinity consisted by these three parts.

According to the Scriptures, the word "soul" can be used to referred either a single person or the mind of someone, while the word "spirit" conveys the meaning of the air breathed, non-physical being as well as the same meaning of the word "soul". So there is some overlap of meaning between these two words, but the one raised the idea of dividing the non-physical part of human being into soul and spirit might probably want to express something else.

Why bother differentiating soul and spirit? Maybe people always have the will to divide their mind into rational and instinctive ones. The evil part of mind is soul, and the rationally kind part is spirit, such division can be also seen in Freud's theory, like id and super-ego.

References:

https://www.christiancourier.com/articles/526-soul-and-spirit-whats-the-difference

http://bible.org/seriespage/man-trinity-spirit-soul-body