21.
Valley-fold according to the step #20.
22.
Unfold the previous fold of the step #21. You can clearly see the crease.
Prepare for another valley-fold (red-dash line).
Poor little Heart! Did they forget thee? Then dinna care! Then dinna care! Proud little Heart! Did they forsake thee? Be debonnaire! Be debonnaire! Frail little Heart! I would not break thee -- Could'st credit me? Could'st credit me? Gay little Heart -- Like Morning Glory! Wind and Sun -- wilt thee array!