I would regard a compassionate, warm, kindhearted person as healthy. If you maintain a feeling of compassion, loving kindness, then something automatically opens your inner door. Through that, you can communicate much more easily with other people. And that feeling of warmth creates a kind of openness. You’ll find that all human beings are just like you, so you’ll be able to relate to them more easily.
I think that in many cases people tend to expect the other person to respond to them in a positive way first, rather than taking the initiative themselves to create that possibility. I feel that’s wrong; it leads to problems and can act as a barrier that just serves to promote a feeling of isolation from others. So, if you wish to overcome that feeling of isolation and loneliness, I think that your underlying attitude makes a tremendous difference. And approaching others with the thought of compassion in your mind is the best way to do this.
My basic belief is that you first need to realise the usefulness of compassion.
Human Warmth and Compassion
His Holiness the Dalai Lama