大毘盧遮那經供養次第法疏 2.36

2.36

此七皆是三昧。以此諸三昧而為莊嚴，更無過上，此是諸佛大界也。

These seven are all samādhis. Adorned with these samādhis, there is nothing surpassing [them]; this is the great boundary of all Buddhas.