Happiness hits different when it comes within pain. The longing feels exaggerated when you suffered the shallow grieves but eventually booking into the deep sea to find bliss is like you find your sanctuary.
The more sufferings - the more happiness, the casket of your pain is waiting to be buried, see you need to dig it to feel serene. Just like every thing needs effort to get the results, you just don't conquer every contentment without pulverizing - you grind every ounce of elbow grease to taste the sweetness from the bitter fruit. That's when you realize the treasure itself is not seen but is cast about to be visualised.