The truth about love is, it isn't visible outwardly yet very essential and powerful. It can be compared with air. We human beings or any creature in this world can't live without air, same way, no soul can ever flourish without love life.
If the air is polluted it suffocate the living creatures. If the love is not pure it will certainly affect every soul.
Real love needs purity in heart to nurture our soul. This is the all truth about love, got it?