Complex sentence: At the age of twenty-four, Zongmi met the Chan master Sui-chou Tao-yüan and trained in Zen Buddhism for two or three years, receiving Tao-yuan's seal in 807, the year he was fully ordained as a Buddhist monk.
Split into simpler sentences: At the age of twenty-four, Zongmi met the Chan master Sui-chou Tao-yüan and trained in Zen Buddhism for two or three years. He received Tao-yuan's seal in 807, the year he was fully ordained as a Buddhist monk.