Shoemaker's Feelings
The Shoemaker did not stitch the last piece of leather because he was feeling tired and sleepy. After working hard all day, bending over his work with his eyes straining in the dim light, he felt exhausted and ready to rest. He had been working diligently on making a pair of shoes for a long time and was finally nearing completion. The Shoemaker's body must have been fatigued from the physical labor of stitching and cutting the leather, as well as the mental strain of concentrating on his craft for hours on end.

Overwhelmed with Exhaustion
The Shoemaker's decision to leave the last piece of leather unstitched shows that he was overwhelmed with exhaustion and needed a break. His body and mind were likely telling him that it was time to rest and rejuvenate before completing the final step of his work. The Shoemaker's actions demonstrate the importance of self-care and listening to one's body when it signals the need for rest.

Dedication to his Craft
Despite his fatigue, the Shoemaker's dedication to his craft is evident in his commitment to completing the shoes. He could have easily left the last piece of leather unstitched and called it a day, but he chose to leave it unfinished so that he could rest and return to finish the job later. This dedication to his work shows his passion for shoemaking and his desire to create a quality product for his customers.
In conclusion, the Shoemaker's decision not to stitch the last piece of leather was driven by his feelings of tiredness and the need for rest. His actions demonstrate a balance between hard work and self-care, as well as a dedication to his craft that is admirable.