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 ("red dust") and 尘世 ("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 or 日常生活.
