A student once said his master, "Please write for me some maxims of the highest wisdom."
The master picked up his brush and wrote one word: "Attention."
The student said, "Is that all?"
The master took the brush again and wrote, "Attention. Attention."
The student became irritable. "That doesn't seem profound or subtle to me."
In response, the master takes up his brush a third time and wrote, "Attention. Attention. Attention."
In frustration, the student demanded, "What does this word attention mean?"
The Master answered gently, "Attention means attention."
Source: Ancient zen story.