It is peaceful in the mountains, free of worldly worries.
Tips
culture
尘 = "dust" — in Buddhist/Daoist usage, dust is a metaphor for the world of senses and attachment. 红尘 (hóngchén, "red dust") and 尘世 (chénshì, "dusty world") share the same image; 出尘 means to transcend it.
register
Literary; common in classical poetry, religious writing and modern essays evoking those registers. In ordinary speech, say 世俗 (shìsú) or 日常生活.