Up to the time of the publication of these volumes, Rilke's poems possessed a quietude, a stillness suggested in the straight unbroken yet delicate lines of the picture which he portrays and in the soft, almost unpulsating rhythm of his words. The approach of evening or nightfall, the coming of dawn, the change of the seasons, the slow changes of light into darkness and of darkness into light, in short, the most silent yet greatest metamorphoses in the external aspects of nature form the contents of many of these first poems. The inanimate object and the living creature in nature are not seen in the sharp contours of their isolation; they are viewed and interpreted in the atmosphere that surrounds them, in which they are enwrapped and so densely veiled that the outlines are only dimly visible, be that atmosphere the mystic grey of northern twilight or the dark velvety blue of southern summer nights. In _Advent_, the experience of the atmosphere becomes an experience in his innermost soul and, therefore, all things become of value to him only in so far as they partake of the atmosphere, as they are seen in a peculiar air and distance. This first phase in Rilke's work may be defined as the phase of reposeful nature. To this sphere of relaxation and restfulness in which the objects are static and are changed only as the surrounding atmosphere affects them, the second phase in the poet's development adds another element, which later was to grow into dimensions so powerful, so violently breaking beyond the limitations of simple expression in words that it could only find its satisfaction in a dithyrambic hymn to the work of the great plastic artist of our time, to the creations of Auguste Rodin. This second element is that which the French sculptor in a different medium has carried to perfection. It is the element of gesture, of dramatic movement. This might seem the appropriate place in which to speak of Rilke's monograph on the art of Rodin. To do so would, however, be an undue anticipation, for it will be necessary to trace Rilke's development through several transitions before the value of his contact with the work of Rodin can be fully measured. The gesture, the movement begins in _Advent_ and _Celebration_ to disturb the stillness prevailing in the first two volumes of poems. Even here it is only gentle and shy at first like the stirring of a breath of wind over a quiet sea; and gentle beings make this first gesture, children and young women at play, singing, dancing or at prayer.