大方廣圓覺修多羅了義經略疏 2.764

2.764

前得本起因地，則所修皆是佛因。此用本起無明，一切皆是魔業。又前以覺圓明故根塵普淨，結云一切是覺。今以無明為本，故云皆是無明。前如金為千器，器器皆金。此如土為千器，器器皆瓦。

Earlier, when attaining the causal stage of the fundamental source, whatever was cultivated was a cause for Buddhahood. Here, when employing fundamentally arisen avidyā, everything is the work of Māra. Furthermore, earlier, because enlightenment was complete and luminous, sense faculties and dusts were universally pure, concluding that 'all is enlightenment'. Now, taking avidyā as the root, it therefore says 'all is avidyā'. The former is like gold being made into a thousand vessels—every vessel is gold. This is like clay being made into a thousand vessels—every vessel is earthenware.