法華義疏 5.26

5.26

「即起合掌」第二、外形致敬。將欲自陳領解，仰瞻如來請為印定，是故避席表其敬誠也。又上即是意業歡喜，今謂身業致敬也。「瞻仰尊顏」者，以仰瞻尊顏思候可言之時也。

Second, 'promptly arose and pressed his palms together' shows reverence in outward form. Intending to state his expression of understanding and looking up at the Tathāgata to ask for his verification, he therefore left his seat to manifest his reverent sincerity. Furthermore, the preceding was joy in the mental karma; this is now paying reverence in bodily karma. As for 'looking up at the venerable countenance': by looking up at the venerable countenance, he was watching for a suitable time to speak.