To me it is those things that Jesus taught in our relationships with others:
Service to others...
Making self-sacrifices for others...
seeing the delight in others' faces when we do something really nice for them - particularly something you know they would greatly like or are interested in...
Learning what a person wants and doing one's best to bring it to pass...
Being good to others generally, and of pleasant company
Basically, it is Living the adage: "Do unto others as ye would that they do unto you".
Know yourself, know what you want, know your limitations
You call the person a bully, jerk, meanie,etc
The opposite of schadenfreude would be sorrow at the good fortune of others, which is called Gluckschmerz. The concept of happiness for another's happiness is mudita.
Happiness
Happiness
Happiness
Allow for the happiness of others.
The true key to happiness in life is helping others, or making others happy. That's all that truly can make you happy. And, you never know, someone will probably pay it forward to someone else, and it will all come back to you someday. Live by the motto: Live well, laugh often, love much.
What is hateful to you, do not do to others. The remainder is commentary.
Helping others
Ralph Waldo Emerson is credited with this quote. It means that by spreading happiness to others, you inherently experience some of that happiness yourself.
Yes, sharing brings happiness to all. It is a feeling of mutual understanding that is developed.