This morning, Monday, November 23, 2009, Rev. James Ford has a wonderful article on his blog about spiritual practice. It is well worth reading.
If I get him right, he says there are two main components of good spiritual practice preparing and doing.
He then says that there are three critical aspects of real spiritual practice ; you need to listen which requires a person to shut up, you need to practice regularly, and you need someone to check up on how you're doing.
I learned a lot from reading Rev. Ford's article. I recommend it to you.