Literature Reference: 永惟来格，降福无疆。—— 《郊庙歌辞 享太庙乐章 金奏》 May the spirits descend forever, bestowing boundless blessings. Source from 'Jiao Miao Ge Ci: Xiang Tai Miao Yue Zhang: Jin Zou'.
来: In the future, to and fro. Often used as a filler word in poetry and lyrics; the future, what is yet to come, tracing back to its origins.
格: Specification; Format.
Meaning: The descent of the spirits symbolizes boundless blessings and auspiciousness.