Ten Books on Architecture - Marcus Vitruvius Pollio

CHAPTER IX ALTARS
Altars should face the east, and should always be placed on a lower level than are the statues in the temples, so that those who are praying and sacrificing may look upwards towards the divinity.
They are of different heights, being each regulated so as to be appropriate to its own god.
Their heights are to be adjusted thus: for Jupiter and all the celestials, let them be constructed as high as possible; for Vesta and Mother Earth, let them be built low.

建築十書 - 維特魯威Vitruvius撰寫

第九章 祭壇
祭壇應面向東方，並且始終放置在比寺廟中的雕像低的位置，以便祈禱和祭祀的人可以向上看神。
祭壇具有不同的高度，各自被調節以適合自己的神。
它們的高度要這樣調整：對於朱比特神Jupiter和所有天上的神，讓它們建造得盡可能高；對於灶神Vesta和大地之母，讓它們建得低一些。