All three were at the center of what God did in and through the mother's group in Scotland. Power is God given energy. Without it we burn out. Without the power of God we cannot do the work of God. But power is worthless by itself.
Power needs to be directed, guided and shaped by love.
Love is God given empathy and compassion. Love was the foundation stone of the mother's group in Scotland. But lacking power, love is ineffective. Love on its own is not enough. A sound mind results in a life of harmonious self discipline.