Kindness is the flavor of the season

Some of us believe that finding the best in others, perceiving them as humans - above all - and letting kindness display its glow is more important. However, as I am a dreamer, yet question many things (most of them way beyond the surface), I wonder: do we understand exactly what kindness is? What does kindness drive as consequence? In few words: why should we be kind? Can we see kindness as the flavor of the perennial season of life? And what do we do to reach it, if it's not innate?