What is emotion?

What is emotion?
In a dictionary it says emotion is any of the feelings of joy, sorrow, fear, hate, love, etc.

What is emotion?
What is feeling?
Feeling is defined as an emotion or emotional perception or attitude.
So then we are back to emotion.

What is emotion?
What is feeling?
What is joy?
Definition of joy is the emotion of great delight or happiness caused by something exceptionally good or statisfying.
There it is again emotion.

What is emotion?
What is feeling?
What is joy?
What is sorrow?
Sorrow's definition is misery and misery is great mental or emotional distress.
Ah ha! Emotion comes back again. So....

What is emotion?
What is feeling?
What is joy?
What is sorrow?
What is fear?
Fear's that distressing emotion aroused by impending danger, evil, pain, etc.
Emotion shows up once again!

What is emotion?
What is feeling?
What is joy?
What is sorrow?
What is fear?
What is hate?
According to the dictionary, hate is to feel intense dislike.
Feeling, has come upon this one, but.....

What is emotion?
What is feeling?
What is joy?
What is sorrow?
What is fear?
What is hate?
What is love?
Love, a feeling of warm personal attachment or deep affection.

Here I have you definitons. But they don't tell you anything.
They don't tell you what emotion is, what a feeling is, what joy is, sorrow, fear, hate or love. They don't tell you.

So you tell me....
What does emotion mean?
What is a feeling?
What is joy?
Sorrow?
Fear?
Hate?
Love?

What do these words mean?