If you don't use it, your life will be tough and rough. Tough means tasteless and difficult. It will be like wood and have no taste. Someone who never tastes love is like dry wood. When love comes to nature nature turns green and gets its colors.
Love goes through flowers, it goes through fruits.
When love reaches to them in springtime, they start to laugh. So when they partake of love, they give love. That is why humankind runs to the greeneries of nature, to look nad to smell it. Nature gives humankind love and humankind gives nature love. They take this love from their Creator.