What did Ra mean by...?

[Steppingfeet]

Thinking out loud here:

Confederation has now a more cautious approach, even though our people's call is greater and greater and the need (of Confederation contact?) is greater. But then it comes this "power upon power" in the middle of this sentence...? Uhum... Say what?

You, who are English speaking, does this sentence make sense? 

Oh, sorry, you were just asking about the meaning of those particular words, not the larger context.

Personally I'm not entirely sure. It could be a poetic turn of phrase to indicate that power is needed, and more power is needed, and more power is needed.

It could reflect the mathematical dynamics of the calling where the next call empowers and doubles all the previous calls.

I think it's general gist is to indicate increasing intensity. If the need is cake upon cake greater, you probably really need some cake, and a lot of it. : )

(And it isn't it right now like 6 or 7am in your world?)