While I think I did pretty good job a few days ago, I must admit that there are those who much better. Like Gary Gilley, for example. These aren't short articles, and they go to some pretty deep depths, and I can't recommend too highly that you read them. He does well in showing the thinking behind these contemplative spiritual practices that are so popular, but that have no biblical support at all, and in fact come closer to New Age types of practices than anything Christians should be involved in.
Sacred Reading (Lectio Divina)
And an HT to Apprising for this, which helped me find the other articles.