all is well
It's safe. It's a Chinese idiom. Pinyin is p í ng ā NW ú sh ì. It's safe. There's no accident. It comes from the second fold of "Haotian tower Mengliang steal bone" by Wu Mingshi of Yuan Dynasty.
The origin of Idioms
The second fold of Yuan Wu Ming Shi's Hao Tian TA Meng Liang steal bone: "brother general orders him to patrol the boundary river. He will come back to his brother's words in peace."
Idiom usage
I gave him more than ninety taels of money for the book selection, and then I bought it back. Now I'm very lucky. The fourteenth chapter of scholars by Wu Jingzi in Qing Dynasty
all is well
earthenware broken and ice melted - wǎ jiě bīng pàn
a clear breeze and bright principles -- as of one 's deportment - qīng fēng liàng jié