"Purple gas" has a high position in the traditional culture of China, and it is an auspicious symbol. Purple represents the dignity of the king and also symbolizes auspiciousness and happiness. Therefore, "purple gas coming from the east" means auspicious arrival, which indicates good luck. The whole poem sets off the beautiful scene of spring and emphasizes the vitality and new beginning of spring.
In a word, the phrase "purple gas comes from the east and spring is beautiful" expresses the Chinese nation's longing for life, hope and future, and also conveys human's awe and yearning for nature and the universe. When spring comes, it brings hope, auspiciousness and a new beginning, which is an irresistible force of nature. We should cherish this beautiful world and feel the beauty and abundance of life with a quiet heart.