Love is everywhere and in everything. But if you mean human love then yes it works best if there is affinity at different levels. Attraction, physical-vital attraction may be an initial tool used by Nature to draw people together. But it wears off soon. What sustains a relationship is a high common ideal, a higher goal or purpose that can bind the two together even beyond the life of the body. Similarly mutual emotional gratification and intellectual companionship, especially the latter, though rarely enters in ordinary relationship, serves as a great cementing factor. All these affinities and union at different levels builds a beautiful harmony. It is this harmony that one seeks in a relationship most and it is this that makes it happy in the long run. With advancing age what one seeks most is not attractiion and physical gratification but a togetherness, care, support, a mutual understanding, a companionship, a possibility of sharing with each other’s thoughts and feelings without the risk of being misunderstood. These are the things that make a relationship truly happy and harmonious rather than attractiion alone.
Affectionately,
Alok Da