浴火重生 | yù huǒ chóng shēng
On March 8 Xi Jinping spoke to the Sichuan NPC delegation. Upon being shown a photo of the Lushan earthquake reconstruction results, Xi used this phrase (not really a chengyu). As far as who showed him the picture, let’s just say that this must have been a pretty big moment for the 四川雅安汉源县古路村支部书记骆云莲代表.
To be born again from fire (to go through great difficulties/challenges and come out on the other side)