" Instead of telling people that they shouldn't feel a certain way, try to understand "the why" they feel that way." - Vex King.
It's vital in both your professional and personal life; when you understand their feelings, you can then know how to react.
I am guilty of this, invalidating how someone else feels because either I don't agree or understand.
The funny thing is I don't like; it when the same has happened to me.
The better action is to understand how much we can accomplish if we try to understand. In your corporate life or personal, listening to others shows you care about how they feel. This type of compassion can go a long way.
Next time you are having a conversation, be willing to learn it is how we grow and can even be inspiring.