A phrase in-game that's fairly close is lok bo, thu'um tum, the Dovahzul version of "Sky Above, Voice Within." The literal translation is "sky flying, voice down" - a bit abstract, but if we want to model your quote after this, the translation might look like:

Lok bo, gol tum, yol kosil "Sky flying (above), earth down (below), fire within

You're right that translation is more of an art than a science. "Me" can get axed here since it can be implied without it. In runes, it would look like this: