金光明最勝王經疏 4.110

4.110

觀行流轉，即緣苦集無明麁相現前即觀滅道淨相，此即麁相現行障。以五地中觀四諦故，雖亦作無相，多時作有相觀，障於六地多無相觀，故入六地能斷此障。

Contemplative practice in the cycle of transmigration is ignorance taking suffering and origin as its object; the active manifestation of coarse marks refers to contemplating the pure marks of cessation and the path. This is the obstacle of the active manifestation of coarse marks. Because on the fifth ground one contemplates the four truths, although one also practices signlessness, for the most part one practices contemplation with signs, which obstructs the predominant signless contemplation of the sixth ground. Therefore, upon entering the sixth ground one can sever this obstacle.