I'm reminded constantly that it's so important to see where God has brought you, and from what you have been spared from (whether it be physical, spiritual or emotional place of hurting) or healed of, or sustained through. Because from that recognition of His movement in your life comes deep gratitude.
I Thessalonians 5:18 says it perfectly-
In every situation be thankful and continually give thanks for God, for this is the will of God for you in Christ Jesus.
Giving thanks with a grateful heart.
Happy heart?? Thank God!
Thank God=happy heart
See how that works?
Practice makes (near) perfect :)