瑜伽師地論略纂 7.123

7.123

釋光明相中有三：初、總明此緣法光明；次、明十一所治暗障；三、顯相違能治白法。　「如是疑隨逐故」者，結初暗障；「障礙能遣疑因緣故」者，結後三障。精勤少睡；正食身調，順觀諦法；不欲雜居，如理作意：是能除遣疑之因緣。後三障此，故說為障礙能遣疑。

In explaining the characteristic of light, there are three [parts]: first, generally clarifying that this takes the light of the Dharma as its object; next, clarifying the eleven dark obstacles to be cured; third, revealing the contrary pure dharmas capable of curing them. "Because doubt pursues one in this manner" concludes the initial dark obstacles; "because of obstructing the causes and conditions capable of dispelling doubt" concludes the latter three obstacles. Diligent exertion with little sleep, proper eating so that the body is attuned and one conformingly observes the Dharma of the truths, not desiring to live in mingling, and wise attention (yoniśo-manaskāra)—these are the causes and conditions capable of eliminating doubt. The latter three obstruct these, and therefore are said to obstruct that which can dispel doubt.