“Seven Words Mantra” inherits the concept of the artist's "Pen Walking" series and the inspiration from their long-term study of Buddhism. Using a single pencil, the seven characters of "Namo Ksitigarbha Bodhisattva" (南無地藏王菩薩) are continuously written on paper. The wood shavings produced during this process are adhered and connected between the written characters until the pencil becomes too short to hold and write with. The remaining pencil shavings are collected in a glass bottle. During the exhibition, these wood shavings will be ignited with Bhaisajyaguru (Medicine Buddha) purification incense, transforming the original form into wisps of smoke. Afterward, the ashes will be collected in the glass bottle, completing the practice of offering to compassionate intention.

《七字書》承襲了藝術家《走筆》系列的概念以及長期研究佛學的啟發，以一支鉛筆，在紙上不斷地書寫「南無地藏王菩薩」七個字，過程中削下的木屑黏貼接續在書寫的文字之間，直到鉛筆短到無法握持書寫為止。將剩餘的鉛筆屑收集於一玻璃瓶中，展覽期間以藥師除障香點燃此木屑，把原本的軀殼，化為縷縷香煙，之後將灰燼收藏於玻璃瓶中，完成了供養慈悲心的實踐。