While his companion held his nose in reaction to the stench emanating from the body, Eliyahu merely commented on the beauty of its white teeth. But when the two passed a live man guilty of many sins, it was Eliyahu's turn to hold his nose. Spirituality is real, not something abstract and removed from the world. If physical objects are capable of producing sweet smells and foul ones, so too do good deeds produce powerful and pleasant aromas while transgressions create a foul stench. The sensitive nose of a righteous man like Yitzchak is capable of actually picking up those odors and was therefore conscious of the exquisite fragrance of the Garden of Eden when his righteous son Yaakov entered.
People are fond of decorating their homes with fragrant flowers and beautiful plants.
How wonderful it would be if our homes could be adorned with the fragrance and beauty of kindness and truth.