There is a wonderful portrait of Kenelm Digby by Van Dyke. He is dressed in black. His hand is on his heart. Behind him is a vast, wilting sunflower. The sunflower is a symbol of constancy — it follows the sun. When his wife Venetia died in 1633, when Kenelm was 29, he went into a profound mourning that lasted for the rest of his life — another 30 years.