Understanding Author's Purpose in Nature Description

In the following excerpt, an author describes a tranquil scene in nature:
"As the first rays of dawn broke over the misty valley, the world seemed to hold its breath. The soft rustling of leaves whispered promises of a new day, while the gentle bubbling of the stream added a melodic rhythm to the morning. It was a sanctuary where time stood still, inviting all to pause and reflect."
What is the primary purpose of the author in this excerpt?