During some writing sessions I feel like my content is just bland and flat. Yet, during other sessions, I feel like my writing is vivid and compelling. Is this normal? Is this acceptable? I realize that many parts of even great books might not be exciting, but they are essential for building characters and plots. My "editor" friend hasn't said anything derogatory about my plot so far, so I guess I have to assume that it's okay. She actually commented on how she liked the turns that it has taken so far.