Michelle Mckinney Hammond said this quote

Happiness is part of being whole. It means having an understanding of your identity and purpose, an established feeling of acceptance and value, and a sense of destiny, joy, and peace -- all of which produce overall well-being. It is impossible to be consistently happy without these characteristics. All people need to know who they are, why they are here, and to whom they belong. Having an understanding of who we are in Christ is foundational to the belief system that allows us to possess these qualities. The Bible says in Romans 14:17 that the kingdom of God is righteousness, peace, and joy in the Holy Spirit. You find in this passage all these characteristics that grow out of being in right relationship with God. His presence is always accompanied by peace and joy; in other words, a sense of total well-being.