Here is a song for you to listen to. When I first heard it, I didn't understand what the chorus meant. Mostly because I didn't really pay attention. Then I heard it randomly play in several different places in a span of about three days (that's when I'm like, Okay, Lord). This world is not our home - our eternal house is with the Lord. The conditions in life are often prime for self pity and getting all wrapped up in fear or sadness.
I even catch myself getting caught up on where I have sinned and wallowing in that shame, and pretty soon, I end up worshiping that instead of Jesus. Sarah Jarosz hits this portion of my thought-life squarely when she sings, "Come down off the cross, we could use the wood...".
Anyways, this song makes me think of summer, peace, and the triumph we find in God. Makes me want to fight for joy.
Proverbs 17:22 A joyful heart is good medicine, but a crushed spirit dries up the bones.