Literature Reference: 尔惟外曾孙，倜傥汗血驹。—— 《别张十三建封》 You are the great-grandson, a spirited and noble steed. Source from 'Bie Zhang Shi San Jian Feng'.
尔: Thus, in this manner.
惟:
Meaning: It signifies 'you are,' representing uniqueness and preciousness, implying noble status and outstanding talent.