The drawing is spiritual essence.

“The grape was becoming ripe on the vines. Riesling, Szilváni, Othello, Burgundy, honey sweet white, port - how strange I thought at the time that all of this incognito meaning is all One, but its value is that each one is inimitably itself and no other.” Grapes and wines are like precious stones. Meanings of the single One with each having a different spiritual essence.