"Novalis has been, and remains, one of the most vital influences in German literature; the modern mystics: Maeterlinck, Herman Hesse and Rilke (often considered the greatest poet of the twentieth century) admit a great debt to him. ... Novalis expresses himself in a unique, personal style, almost as if he has discovered language by himself. ... Novalis himself wrote that he felt it necessary to develop a symbolic philosophical language for the purpose of protecting his deepest insights from those incapable of respecting them. In this he has not been alone — if we look at the words of the Sufis we often find mystical concepts veiled in poetic terms. ... The principle mode of concealment is the use of imagery. Images are used to veil meaning, but for those who share Novalis' love of symbolic imagery and subtle metaphor his language is a veil that enhances, rather than conceals, the beauty of his art. This use of concrete, palpable images overcame, to some extent, what he described as the “poverty of words”; and avoided the use of philosophical terms to express abstract concepts. In some instances spiritual qualities are personified as characters, human or divine, as they are in Hindu mythology... Novalis is known as the originator of the central symbol of the German Romanticism, The Blue Flower; he shared in the movement's deification of Nature, the demand for the Absolute, the idea of spiritual rebirth. ... Novalis, like other poets of the period, wanted to return to the sense of the Sacred found in the humbler Medieval tradition with its great mystics such as Hildegard von Bingen and Meister Eckhart."