How do we define emotions?
One area of confusion is that feelings are often loosely equated with emotions. This is all right for colloquial use. I can ask a friend how he is feeling today ; it would be awkward to ask him how emotional he is being today. Some people might take offence if they were thought to be emotional, whereas it is acceptable for them to show feelings. However, there are fundamental differences between feelings and emotions.
There are just three feelings : the pleasant one, the unpleasant one, and the neutral one. This is the Buddhist understanding and I verified this fact directly during the time when I used to practise meditation. In the past, some moral theorists believed that the neutral feeling is only an equal mixture of both pleasant and unpleasant feelings, so that the net effect is zero. But meditational awareness disproves this assumption.