Eagle and Pine was made in the Mid-Autumn Festival of 1974. It depicts a determined eagle looking afar with outspread wings, while its feet still hold onto a branch. This young eagle seems to be learning to fly or ready to leave its birth nest. The work is constructed with a horizontal perspective, hinting a side view of a parent watching his child getting ready to leave the scene. The juxtaposition of the excitement of the young and the grief of the parent compose an intense contrast of emotions within and outside the frame. According to his family, the Mid-Autumn Festival of 1974 was a heavy time for the family, as the second daughter prepared herself for her studies in the US. As a father, Yu Chung-lin was thinking of his eldest daughter who was overseas, while preparing for the leave of his second daughter. On one hand, he was thrilled by his daughter's great future; while on the other, he was sad to face the separating family. Hence, he created this eagle, the national bird of the US, to express the opposing emotions within. This painting commemorated a significant milestone of his daughter and was thus treasured and kept in the collection of his family till this day.