Happiness and Putting Joy in the Hearts

Imam Ali (AS) said, Happiness opens up the spirit and stimulates vitality.

Imam Ali (AS) said, At times happiness becomes roiled.

Imam Ali (AS) said, Perhaps [the joy of] happiness may turn bitter.

Imam Ali (AS) said, Every joy [in this world] turns sour [eventually].

Imam Ali (AS) said, No one puts joy in a [believers] heart except that Allah creates a grace from that joy, so whenever any calamity befalls him, it (the grace) flows over it just like the flowing of water until it expels the calamity from him just as the unfamiliar camel is expelled from the group of camels.