If you desire with all your heart,....

The two main sources of human emotions are love and fear:

Love promotes compassion, kindness and respect. Love facilitates transformation, which is a voluntary self-ordianed process. The act of transformation can be defined differently, yet represent reality of change.
Fear, on the hand, perpetuates cruelty, unkindness and disrespect. Jealousy is fear with a mask. Fear accepts no change and sticks to status quo, and instead promotes revenge, disorients thoughts and prevents the truth by hook or crook. The consequence of fear is control.

"If you desire with all your heart, friendship with every race on earth, your thought, spiritual and positive, will spread; it will become the desire of others, growing stronger and stronger, until it reaches the minds of all men." -
'Abdu'l-Bahá