Speaking of our faith is something that we often find difficult. I guess that is because it is often just beyond what we can easily say. There are lots of things we can say that describe aspects of faith - but really pinning it down is complicated.
Krista Tippett (in Speaking of Faith, Penguin, 2007) quotes a comment by Lawrence Kushner on speaking of faith (p. 221) - "It pushes the edge of language. One of the reasons that speaking of faith is such a slippery and a moving target is because we're trying to talk about the stuff of which we are."
Speaking of faith may try to elude us, but it's worth the effort.