There are a total of six hundred vertical threads to thread.
He thought he could thread two hundred in one night.
But by the time he reached a hundred, he was already very fatigued, with not only a sore waist and back but also a headache and dizziness.
Using needle and thread made him tired.
He was very relaxed doing most things, but when threading needles, he had to concentrate and remain tense.
Every time he knotted the thread, he felt a bit irritable because they were so fine and soft, and the knots were small.
The distance between two adjacent threads on the horizontal wood was two millimeters, allowing for slight deviations.
They were wound manually, requiring great care in the process.
Considering the amount of work done during the day.
He felt exhausted to the point of being unable to endure, but he forced himself to persevere.
