If You ask me which are harmony which resonates with my views are true relationship and love. Maybe the bond of love you share with your neighbor or classmate or a stranger. Be happy to all, love all.
Which will automatically connect your goodness to other’s mind and then transform them to love you back, which enable you to share the greater part of joy to rest of the people who are in need of that compassion of trust and bond of love. Maybe the first step is loving your greatest friend “nature”.