Undecided, life and death in a thought!
The meaning of this phrase is broad and ambiguous. What does "life and death in a thought" mean? Is it one's own thought, or someone else's thought?
Therefore, even the Nine Great Dao Monarchs did not understand the meaning of this phrase.
Of course, they would understand it soon after because, at the moment they made their move, the Heavenly Book underwent another change.
The Nine Great Dao Monarchs charged out, joining forces to strike at Yusuf Zuck, the Divine Envoy, annoyed and angry, because a mere Immortal Venerate managed to casually clash with her, one palm against another. Not only was the Immortal Venerate unharmed, but it was she whose vital energy became unstable.
Although this was not her true strength, she was a divine being. How could a divine being possibly fail to stop a minor practitioner from the Immortal Realm?