Literature Reference: 魂眇眇而驰骋兮，心烦冤之忡忡。——《楚辞·哀时命》 My soul drifts afar, yet my heart is troubled with sorrow. Source from 'Ai Shi Ming' in 'Chu Ci'.
忡: Beset by anxiety and unease.
忡: Beset by anxiety and unease.
Meaning: Chong chong describes a state of deep inner turmoil and sorrow, reflecting profound grief and restlessness.