Sandip asked:

What is the precise definition of:

Spirit

Ego

Mind

Brain Process

Soul

Consciousness?

Do we really need so many words?

What do you philosophers think?

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We do need these words since they all signify different aspects of man, although the spirit and soul
mean the same thing, both have religions connotations. Spirit and soul are the part of man which is
supposed by some to survive the body's destruction. This is logically possible for the mind, but in this
sense the proposition that the mind might survive the body is something to be considered when
looking at the nature of mind and it's relation to body, whereas the proposition that spirit or soul
survives the body is connected to belief.

The ego is 'I', the self, and could be identified with the mind, the mind and body, history, survival etc.
There is a lot of philosophy about the self, some of which you can find on this site.

The ego is also a psychoanalytical term introduced by Freud to describe a particular conscious
agency in the mind, in contrast to drives (the id) and the moral agency (superego). The ego is that
part of the mind which represents reality, but this can't be equated with man's rational faculty, since
there is nothing about the superego, and the ego also has the function of controlling and repressing
unacceptable drives. The function of control and repression can lead to the setting up of defence
mechanisms which prevent a person from pursuing goals successfully, forming stable relationships,
and can lead to forms of neurosis which are treated by ego-psychologists. The term is a theoretical
one and it is possible to deny the truth of psychoanalytical theory and also the existence of the ego.

Everyone believes that man has a brain and it is arguable whether this should be identified with the
mind, since the mind is essentially conscious whereas the brain is a physical thing. Again, there is a
lot of philosophical discussion about this and some of it can be found on this site.

Brain processes underlie conscious states, or the mind. Discussion here centres around the question
whether a particular brain process determines a particular conscious or mental state. The nature of
brain process is also the subject matter of neuroscience.

I haven't provided any precise definitions, because as far as I know there aren't any, which is why we
manage to do philosophy.

Rachel Browne

I'm sorry having to tell you, that there is no precise definition of any of your mentioned terms. They all
refer to something beyond physical existence and are subject of a branch of philosophy, the
philosophy of mind. It includes philosophical psychology, philosophy of psychology and the area of
metaphysics concerned with the nature of mental phenomena and how they fit into the causal
structure of reality. As we cannot point at an entity "spirit", "soul" and so on, we have to describe them
and we need different words to describe the different aspects of mental phenomena. When
philosophers use one of these terms, they have to explain in what sense they use it. I'll give you some
examples below.

The original idea of a spirit is of a disembodied agent, as an immaterial soul or a non-material
intelligent power. In the seventeenth century and earlier there was a belief in spirits as gaslike
substances intermediate between matter and mind. When we talk now of the spiritual we refer to
neither of these but typically to the kind of emotion one might have towards God or some other factor
beyond one's material life.

Ego is what 'I' stands for, the subject's essence. Plato and Descartes thought a person could exist
disembodied. Locke imagined that a prince could swap bodies with a cobbler. It is hard to see how
these stories could be intelligible without conceding the existence of an incorporeal ego, a subject for
thinking, feeling, and willing, which makes each person who they are. In psychoanalysis, ego is the
part of the mind that is closely in touch with the demands of external reality and operates rationally. It
includes some motives (such as hunger and ambition), the individual's learned responses, and his (or
her) conscious thought. It has to reconcile the conflicting demands of the id, the superego, and the
outside world. The human soul is that which gives life to the human being. For Aristotle, the soul was
simply the form of the body, which means the way our bodies behave, and cannot exist separately
from it; plants and animals also had souls of their own kinds. For Plato, most Christian theologians of
the first millennium AD, Descartes, and many others, the soul was the essential immaterial part of a
human, temporarily united with its body. Aquinas also held this, while emphasizing that union with a
body was the natural state for a soul. Most modern philosophers deny the existence of an immaterial
soul. One strong argument for the existence of such a soul given in essence by Descartes is this: I
am now conscious. But it is logically possible that my body should suddenly be destroyed and yet I
continue to be conscious and so to exist. But a thing such as I am can only continue to exist if some
part of the thing continues to exist. So I must now already have an essential non-bodily part, a "soul",
if my continued existence is to be logically possible.

Most of us will say, that consciousness exists, but it resists definition. There are some criteria for
saying of some organism or state that it is conscious. Consciousness involves experience or
awareness. Human mental life undoubtedly has a phenomenal side, a subjective side that even the
most sophisticated information-processing systems lack.

Simone Klein

http://www.sophiasworld.at/

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