“There are moments when Nature reveals the passion hidden beneath the careless calm of her ordinary moods--violent spring flashing white on almond-blossom through the purple clouds; a snowy, moonlit peak, with its single star, soaring up to the passionate blue; or against the flames of sunset, an old yew-tree standing dark guardian of some fiery secret.”—john Galsworthy, The Forsyte Saga 1. What does the color “purple” symbolize in this context? Write at least one sentence as explanation.
Why does the author contrast purple and white? What does this contrast symbolize?