大毘盧舍那成佛神變加持經蓮華胎藏悲生曼荼羅廣大成就儀軌 1.28

1.28

In order to cause body and mind to be completely pure, and out of compassion to rescue and gather oneself and others, / the nature of mind is thus free from all defilements. Sit properly according to what is appropriate, / clearly and intently contemplate the initial syllable-gate, surrounded by nine tiers of circles, empty, round, and white. / Next, form the samaya mudrā, which is called purifying the paths of the three karmas.