The most important reason: the imperial examination system in the Tang Dynasty was fully mature, and both poetry and fu were subjects of the imperial examination in the Tang Dynasty, so natural poetry flourished. The Tang dynasty was prosperous and stable (not in the later period), and the people lived and worked in peace and contentment, so naturally they had leisure to write poems.
Summarized as follows:
1: Social and economic prosperity
2 The political imperial examination plays a guiding role.
At this time, civilians are rising, and they have become the driving force of national development.
4 ethnic integration, cultural exchanges between China and foreign countries provide material for this.
5 Enlightened and tolerant cultural policy