The first step, first I prepare a square origami, the paper should not be too soft.
Step 2: Fold the square origami we prepared in half, pay attention to align each edge line, we get a rectangle, and then flatten it, as shown in the figure.
Step 3: Fold the rectangle we just got in half again to get a small cube, and then flatten it, as shown in the figure.
Step 4: unfold the figure completely, and we can see that the two creases cross horizontally and vertically, as shown in the figure.
Step 5: Based on the two creases just obtained, fold one corner of the square origami towards the center point, align it with the center point, and then flatten it, as shown in the figure.
Step 6: Fold the other three corners of the square origami towards the center point, align with the center point, and then flatten it, as shown in the figure. I have a square.
Step 7: Turn the just folded graph upside down, as shown in the figure.
Step 8: Fold one corner of the square just obtained to the center point, align it with the center point, and then flatten it, as shown in the figure.
Step 9: Fold the other three corners of the square towards the center point, align them with the center point, and then flatten them, as shown in the figure. We get a smaller square.
Step 10: Fold the corner of the small square origami just obtained to the center point, align it with the center point, and then flatten it, as shown in the figure.
Step 11: Fold the other three corners of the square origami towards the center point, align with the center point, and then flatten it, as shown in the figure.
Step 12: Turn the newly folded picture over, as shown.
Step 13: Open the four corners outward, as shown in the figure.
Step 14: Squeeze the figure to the middle and fold the four sides of the small square in the middle into a cross. As shown in the figure.
Step 15: gently roll up the four petals, which is basically the repeated folding of the four corners to the center. As long as the numbers are carefully compared, there is no mistake in the front and back, and basically everyone can fold them.