One who has ‘installed Love’ in his life, is the happiest person in life. Because whoever gives/shares Love, gets it back from them in its due course. ‘Love’ ropes in high esteem, warmth, peace and contentment in one’s life.
When ‘Love’ is installed in somebody’s heart, automatically vicious feelings like pasthurt, lowesteem, grudge, resentment, etc. would go away and in their absence, man can but be happy.