While my search about happiness within the Serotonin project I found a medieval poem, called the Land of Cokaygne.
Far in the sea, to the west of Spain,
Is a country called Cokaygne.
There's no land not anywhere,
In goods or riches to compare.
Though Paradise be merry and bright
Cokaygne is of far fairer sight ...
"The Land of Cokaygne [also spelled Cockaygne or Cockaigne] (in the German tradition referred to as "Schlaraffenland") has been aptly called the "poor man's heaven", being a popular fantasy of pure hedonism and thus a foil for the innocent and instinctively virtuous life that is depicted in all the other accounts mentioned above. Cockaygne is a land of extravagance and excess rather than simplicity and piety. There is freedom from work, and every material thing is free and available. Cooked larks fly straight into one's mouth; the rivers run with wine; sexual promiscuity is the norm; and there is a fountain of youth which keeps everyone young and active." (Wikipedia)
I made a video from found footage material and a text2speech version of the Land of Cokaygne.