Taking you to the wonderful world of Incense. Lists of benefits derived from incense The "Ten Virtues of Koh" is a list of the benefits derived from the use of incense. These Ten Virtues have been passed down from the fifteenth century (the Muromach Era) and are still cited today as uniquely capturing the spirit of Koh. After these Ten Virtues were established, Koh gradually evolved away from the sophisticated elegance of the courtier and acquired the character of a discipline, the way of Koh (Koh- Do).