仁王護國般若波羅蜜多經疏 3.117

3.117

Explanation: 'Jewelled lotus flowers' means either that the flowers are made of numerous jewels, or that the flowers are like numerous jewels; hence they are called 'jewelled flowers'. The older [version] said 'flowers of practice', which Tiantai explained as 'symbolising the immeasurable practices of merit and wisdom cultivated at the ranks of the three worthies'. Here, saying 'lotus flowers' symbolises that practice is untainted. It also symbolises that the immeasurable lines and verses of text prajñā that constitute the expressing [medium] are all untainted. Next is the second [section]: the flowers form a jewelled throne.