Daily Chinese Idiom Guessing Game
Suddenly understand or realize something; to have a moment of clarity.
恍然猛然清醒的样子；悟心里明白。形容一下子明白过来。
宋·释道原《景德传灯录》卷五简蒙指教，豁然大悟。”
After hours of puzzling over the problem, she had a sudden realization and shouted, 'I get it now!'