Is the ancient tree and the breeze an idiom?

The ancient tree breeze means that the summer evening breeze blows under the tall century-old trees. Is it comfortable? Feeling. So it's a word, not an idiom.

Old and valuable trees: Ancient trees refer to trees that are more than 100 years old. Ancient trees are divided into national first, second and third grades. National first-class ancient trees are more than 500 years old, and national second-class ancient trees are 300-499 years old, national third-level ancient tree 100-299 years old. Famous trees refer to trees planted by Chinese and foreign celebrities and leaders of all ages who have had great influence in history or society or have extremely important historical, cultural value and commemorative significance. National famous trees are not subject to age restrictions and are not classified. Ancient and valuable trees are symbols of the long history and culture of the Chinese nation, green cultural relics, living fossils, and priceless treasures left to us by nature and our predecessors.