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Thanks, never heard of that idiom before.

I believe it's part of an old Irish saying, with the balance being (paraphrasing) "May the sun always shine upon your face"

Found it: @ninjamike 😎

May the road rise up to meet you. May the wind be always at your back. May the sun shine warm upon your face; the rains fall soft upon your fields and until we meet again, may God hold you in the palm of His hand. This traditional Irish blessing is an ancient Celtic prayer.