गान्धर्व तन्त्र (शैव-शाक्त आगम - मन्त्र-रहस्य, यन्त्र एवं देवतोपासना सटीक)

mouth, nose, jaw, eye, ears, and cavity in the head goes
by the name of Ashtānga, Touching the earth with the
skull goes by the name of Ugra
17TH CHAPTER
In the 17th Patala worship, in the nine component
parts of Srīchakra, of the attendant deities classified under
nine categories technically called Prakatayoginīs etc is given
along with the description of the Mudrās and their use
In the first part called Trailokyamohana represented by the
three rectangles the worship is to be conducted from the
right unlike other parts in which the left side is to be
adhered to. In the external rectangle Buddha as the great
Lord of Yoginīs is to be worshipped with the mantra
बुं बुद्धाय नमः along with the ten psychic powers Animā
etc The first four powers occupy the quarters beginning
with the west, the second four the sub quarters beginning
with the northwest and the last two come below
and above The mantra to be used in the worship of a
psychic power is ह्रीं श्रीं and the name of the psychic power
and श्रीपादुकां पूजयामि In the inner rectangle the eight
mothers Brahmānī etc and the eight Bhairavas, Asitānga
etc. are to be adored In the innermost rectangle the
Mudrā-devīs Sarvasankshobhinī etc. receive their worship
For the description of Sarvasankshobinı-Mudrā see the
text. The Bīja of the Mudrā is द्रां
In the second part i e sixteen-petalled lotus bearing
the name of Sarvāśāpūraka sixteen datal eternities, and
Brahmā receive their worship. The mantra of Brahmā and
the Bīja of Drāvinī-Mudrā to be shown here are respectively
ॐ ब्रह्मणे नमः and द्रीं