New Delhi, May 26 -- The quote is often linked to Airman's Odyssey, an English-language collection of Saint-Exupery's aviation writings.

Saint-Exupery's quote challenges a narrow idea of romance. Love is not only about admiration, attraction or looking intensely at one another. Those moments matter, but they are not enough to sustain a life together. Lasting love needs shared direction: values, dreams, responsibilities, priorities and a vision of what two people are building.

The deeper lesson is that a relationship cannot survive only on emotion. It also needs alignment. Two people may love each other deeply and still struggle if they are walking toward completely different futures - different ideas of family, money, ambition, lifestyl...