金光明最勝王經疏 2.73

2.73

贊曰：標現促所以。所以有二：一為滅惡，即捨生死；二為生善，即令得菩提。此為滅惡。亦別釋五濁。濁有五種，此中舉四：一命濁，謂人壽百年。二有情濁，有情濁中有三：一喜意不弘，謂稟性下劣；二宿無福慧，謂善根微薄；三多有迷愚，謂無信解。

The commentary says: This indicates the reason for manifesting a brief [lifespan]. There are two reasons: first, to extinguish evil, namely abandoning saṃsāra; second, to generate goodness, namely causing them to attain bodhi. Here, it is to extinguish evil. It also distinctively explains the five defilements (pañcakasāyāḥ). There are five kinds of defilement; here four are cited: First, the lifespan defilement (āyuḥkaṣāya), which refers to human life lasting one hundred years. Second, the sentient-being defilement (sattvakaṣāya), within which there are three aspects: 1. their joyful disposition is not magnanimous, which refers to being inferior by nature; 2. they lack past merit and wisdom, which refers to having meager and thin roots of goodness; 3. they have much delusion and foolishness, which refers to having no faith and understanding.