You should love only one thing in yourself, that which is the same in all of us. In loving that which is the same in all of us, you love God.
Master, which is the great commandment in the law? Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second is like unto it, Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets.
— Matthew 22:36-40
People live by love: love of yourself is the beginning of death; love of other people and of God is the beginning of life.
God is love. And he who lives in love, lives in God, and God lives in him. If we love one another, God lives in us.
— 1 John, from Chapter 4
Love is not a source, it is a consequence of our understanding the divine, spiritual beginning which exists in all of us.