Alex Kirk introduces his four part series on adoration, confession, thanksgiving and supplication with a thoughtful discussion of why we pray, and how important (and simple) prayer is.
Below is a link to the video of the sermon.
http://www.chathamchurch.org/mediaPlayer/#sermonvideo/351
Below is a link to the full text of the sermon as a pdf.
http://s3.amazonaws.com/churchplantmedia-cms/chatham_community_church_pittsboro_nc/why-pray.pdf
Below is a link to the audio of the sermon.