Lately I've been thinking about my own view of ecclesiology (doctrine of the Church), and have been leaning toward to seeing it as an element of Christology—specifically, I've been thinking that the most basic fact of the church is that it exists as the body of christ in the world, both in being and function. I'm thinking both about "body of christ" language as well as Paul's "in christ" language.
However, I can see that it might be more appropriate to consider the church as the living vessel of the Spirit, and seeing her work as the ongoing work of God's spirit in the world. I'm thinking here about how the spirit drives the church in acts and Paul's attention to the charismatic actions of the spirit. I'm sure at the end of the day it is important for a full doctrine of the church to account for how it interacts with the whole trinity, but I'm wondering if someone might help nudge me one way or another here.
What say ye, is Ecclesiology more closely related to Christology or Pneumatology? What other data should I consider in building a case one way or another? Are there particular historical streams of thought I should attend to?