纵横驰聘眷卿三生
[zòng héng chí pìn juàn qīng sān shēng]
In poetic form, it indicates a longing or promise to gallop across all dimensions ('纵横驰聘' suggesting free-ranging) to seek and cherish the beloved for three lifetimes, expressing the depth of loyalty, passion, and eternal love for the one being addressed.