Color is, in brief terms, the type of love. Hence it is especially connected with the blossoming of the earth; and again, with its fruits; also, with the spring and fall of the leaf, and with the morning and evening of the day, in order to show the waiting of love about the birth and death of man.
John Ruskin (1868). “pt. VI: Of leaf beauty. pt. VII: Of cloud beauty. pts. VIII-IX: Of ideas of relation”, p.338