Where does all mental melancholy and blue depression cease without a trace remaining?
When, with the fading away & stilling of all directed thought & any sustained thinking,
one enters and remains in the second jhāna absorption of assured unification of mind,
merged with pleasure and joy, born of this well anchored & fixed concentration: It is
right there that all mental frustration and sadness cease without a trace remaining...
Therefore do beings reborn at the radiant divinity level, never feel any mental sorrow,
misery or sadness, since they are continuously absorbed in this 2nd jhāna concentration...
Thus they move their body of beaming light joyously around at the speed of a thought!!!
They are literally feeding on this pure Joy! Enraptured & exalted by swift ecstatic bliss!

On how to attain the Jhāna  absorptions:
http://What-Buddha-Said.net/drops/Details_of_the_Jhana_Absorptions.htm
http://What-Buddha-Said.net/drops/Requisites_for_Jhana_Absorption.htm
http://What-Buddha-Said.net/drops/III/The_Concentration_Ability.htm
http://What-Buddha-Said.net/drops/What_is_Right_Concentration.htm
http://What-Buddha-Said.net/drops/III/Feeding_Concentration.htm
http://What-Buddha-Said.net/drops/III/Concentration_Samadhi.htm
http://What-Buddha-Said.net/library/DPPN/wtb/g_m/jhaana.htm
http://What-Buddha-Said.net/drops/IV/Jhana_Absorption.htm 
http://What-Buddha-Said.net/drops/Samma-Samadhi.htm