大毘盧遮那成佛神變加持經蓮華胎藏悲生曼荼羅廣大成就儀軌供養方便會 1.146

1.146

"Next, use Durddharṣa's / secret mudrā and vidyā to bind and protect: / from the secret womb spread the water wheels, / rotating to point toward the ten directions; / this is called binding the great boundary. / Used to maintain the lands of the ten directions, / it can make them all firmly abide; / therefore, in the matters of the three times, / it can universally protect them all; / its fierce majesty cannot be gazed upon."