what should be there in life.which makes happy. and to be happy.

a relatively stable mind/heart which does'nt react blind to any given suitation might it be sad, happy, anger, etc. to make own happy and other happy be truthfull to yourself, knowingly or unknowingly do not harm any living being. do all activities with full present of mind. any act with distrubed mind/heart will add to misery most of the time.