On hearing he'd been admitted, he 'laughed up at the sky and went out the door' - his friends caught the mood.
Tips
history
From Li Bai's 《南陵别儿童入京》 (742 CE, written when Emperor Xuanzong summoned him to the capital). Closing couplet: 仰天大笑出门去,我辈岂是蓬蒿人 (Laughing up at the sky, I stride out the door - how could men like us ever be weeds of the wild?). Written at age 42 after years of obscurity, it is the quintessential Li Bai moment of swaggering self-confidence.
usage
Always cited together with the next line 我辈岂是蓬蒿人 ('we are no tumbleweeds'). Modern use: announcing a triumph you've long been waiting for.