Taittirīyopaniṣat 01.11

"Invoking the syllable 'Aa', i.e. auspicious expansion, may the brahmachārins (students) come to me, Offering!
Invoking the syllable 'Vi', i.e. distinguished particularity, may the brahmachārins (students) come to me, Offering!
Invoking the syllable 'Pra', i.e. with directedness and intensity, may the brahmachārins (students) come to me, Offering!
Invoking the syllable 'Da', i.e. self-control, may the brahmachārins (students) come to me, Offering!
Invoking the syllable 'Sha', i.e. tranquillity, may the brahmachārins (students) come to me, Offering!
Glory to all the people, Offering!
Let there be enhanced prosperity, Offering!
O Lord, may I enter you, Offering!
O Lord, may you enter me, Offering!
In that thousand-branched (body); O Lord, I cleanse myself in you, Offering!