維摩經玄疏 4.91

4.91

四教通〈見阿閦佛品〉者，明若依四教修行，發菩提心，始得生阿閦佛國也。亦因此義，無動如來佛國之行得成佛時，所有佛國如妙喜世界也。

Explaining the 'Seeing Akṣobhya Buddha Chapter' through the four teachings clarifies that only if one cultivates practice according to the four teachings and gives rise to the bodhimind can one be born in Akṣobhya Buddha's land. Also due to this meaning, when the Tathāgata Acala's practices in his buddha-land enabled him to achieve buddhahood, all his buddha-lands were like the Abhirati realm.