金光明最勝王經疏 3.175

3.175

贊曰：修行悕出喻。運手，喻修妙行。動足，喻捨三障。生死不續，喻截流。金剛位滿，言而渡。在無間道，菩提在未來，因圓能至，云得至彼岸。

The commentary says: The metaphor of cultivating with the hope of emergence. 'Moving their hands' illustrates cultivating wondrous practices. 'Moving their feet' illustrates abandoning the three obstacles. Saṃsāra not continuing illustrates cutting across the current. The stage of the vajra[-like samādhi] being completed is expressed by 'cross over.' On the uninterrupted path, bodhi is in the future; because the cause is perfected, one can arrive, hence it says 'reaching the other shore.'