Love is considered the most basic emotion that human awareness can feel; therefore, it is the closest to the source of life. The burst of well-being you feel when you fall in love is due to the fact that you unconsciously open the channels of awareness that allow more Prana [Life Force] to flow.
Deepak Chopra (1997). “Ageless Body, Timeless Mind: The Quantum Alternative to Growing Old”, Random House Large Print Publishing