Literature Reference: 'Zhi zhi' means the ultimate, from 'Zhuangzi: Free and Easy Wandering.'
至: Arrive; reach the pinnacle, the utmost, attaining the zenith.
至: Arrive; reach the pinnacle, the utmost, attaining the zenith.
Meaning: 'Zhi zhi' signifies the ultimate, representing the pursuit of excellence and perfection.