Training is needed in order to love properly; and to be able to give happiness and joy, you must practice DEEP LOOKING directed toward the other person you love. Because if you do not understand this person, you cannot love properly. Understanding is the essence of love. If you cannot understand, you cannot love. That is the message of the Buddha.
Thich Nhat Hanh, Sherab Chodzin Kohn (2011). “True Love: A Practice for Awakening the Heart”, p.2, Shambhala Publications