The daily prayers have an underlying coherent structure that is built around certain individual and national foci, and taking this apart gives me a much clearer picture of act of praying and the feelings that go along with it. Another good source is a two volume set by Rabbi Steinzaltz on the structure of the siddur. Two English books on the words of the prayers themselves are World of Prayer by Rabbi Munk and My Prayer. These last two did not really help me, but a lot of people like them. To locate some of the Talmudic sources for much of our prayer structure and many of the prayers themselves, see .
Spirituality is an emotion a feeling.
I wanted to comment on the statement that spirituality is a feeling. I would respectfully disagree on this point. I think spirituality is a state of being. I would liken it more to how close or how far away one is from G-d. If one were to view spirituality along a continuum, as one reader suggested in last week's edition, I would say that each one of us could describe their spiritual development as lying figuratively at some point along that continuum.