(noun) Oneness; the state or fact of being one undivided entity.
"Love as distinct from "being in love" is not merely a feeling. It is a deep unity, maintained by the will and deliberately strengthened by habit."
"Let’s get together and feel all right"
"Our ability to reach unity in diversity will be the beauty and the test of our civilisation."
"We need peace, we need giving, we need love, we need unity."