When we feel happy and peaceful, our happiness and peace radiates around us, and others can enjoy it as well. This is called 'the enjoyment of others of our body of bliss'.
False happiness is like false money; it passes for a time as well as the true, and serves some ordinary occasions; but when it is brought to the touch, we find the lightness and alloy, and feel the loss.
Happiness arises as a result of different causes and conditions. If you harm someone out of anger, you may feel some superficial satisfaction, but deep down you know it was wrong. Your confidence will be undermined. However, if you have an altruistic attitude, you’ll feel comfortable and confident in the presence of others.