Buddha and Jesus, as well as many other sages and saints throughout the ages, seem to agree with the Hippies -- and the Beatles. In the final analysis: All you need is Love.
That seems simple enough.
The form of "love" that our culture promotes has a lot more to do with fulfilling one's own individual ego needs for sex, security, status, and self-esteem than the quality of consciousness that emerges from what American Buddhist Teacher Pema Chodron calls an Awakened Heart. True Love is not the profound passionate grasping of deep attachment. True Love is much grander than that.
True Love emerges, and is essentially inseparable from, Pure Being. It is identical to the One Love that exists beyond the illusion of disconnection that characterizes the realm of relative reality. Flowing from and returning to our Essential Oneness, True Love emerges as the compassion, joy, ease, and clarity that exists in our heart of hearts.
Unlike the common contemporary understanding that views love as something we just fall into (and, so often, out of), in the Buddhist tradition, love is seen as a aspect of consciousness. Our connection to that love can be intentionally cultivated. Although we may stumble into glimpses of Oneness through an intimate connection to "the other" in a romantic relationship -- especially in its initial honeymoon phase -- ultimately, True Love emerges from a fundamental choice to embrace Life itself, to let go of who we think we are and open our hearts and minds to the actual experience of the present moment.
Although this can happen with the very next breath, the process of actually becoming a loving person generally doesn't just happen. It is a Practice. Erich Fromm characterized it as an art in his classic work, The Art of Loving. Like any discipline, True Love takes commitment, a set of skills, effort, persistence -- and patience.