幕天席地mu tian xi di
have the sky as one’s tent and the earth as one’s mat—?take one’s ease out in the open air
?have great breadth of view
幕天席地mù tiān xí dì
幕：布幕。把天當作幕，把地當作席。原形容胸襟開闊，也形容野外生活不畏艱險。a picnic party in the open, with the blue sky over one’s head and the grass land under one’s feet, sleep on the ground in the open air