69.
Now, we need to find the "triangle" point which is located about (2/3, -1/3).
Prepare for two valley-folds starting from the diamond point to the triangle point and then to the heart point.
70.
Apply two valley-folds according to the step #69.
Of the Heart that goes in, and closes the Door Shall the Playfellow Heart complain Though the Ring is unwhole, and the Company broke Can never be fitted again?