Abstract: (The Celestial Space in the Virgilian Creation) The celestial space, constantly evoked in Vergil’s creation, is associated with the idea of expanse, elevation, profoundness, which are everlasting defining elements of poetic thinking and imagery. The fascination exercised by the blue sky on the Mantuan artist is reflected, at lexical level, by the frequency of the noun caelumand its synonyms (āēr, aether, altum, aura, axis, Juppĭter, Olympus, polus etc.), which are used in Virgilian lyrics to express the variable terminology of the blue. Suggested by caelum and its synonyms, the ether’s blue is conveyed by the Latin poet by means of certain twosomes such as: apertum caelum ("the azure plains"); aether apertus ("the clear sky far above the ground"); caelum serēnum ("the sky with sapphire face"); caelum apertum ("sunlit sky"), or through certain nouns such as pūrumand serēna (poetic plural) "unclouded sky". This celestial image, as reflected by Virgil in his lyrics, is often accompanied by light – solar, lunar or stellar, causing the cosmic azure to come into a plastic association with the golden tonality of the stars. On the other side, in contrast to the sky’s blue, dark clouds are also showing up in the Virgilian universe (nubila caeli, nubibus atris), as well as ashes (caligine), lightning (fulgura), flames (globos flammarum), smoke (fumo) – everything presented against the bright firmament of the skies. The chromatic contrast thus created is meant to further emphasize the bright sky (aether, aura, caelum etc.), a symbol of purity, serenity, and infinity.