Dīkṣā-bhedaḥ (Types of Initiation) — Lalitopākhyāna: Hayagrīva–Agastya Dialogue
चिरं शुश्रूषया सम्यक्तोषितो देशिकेश्वरः / तूष्णीं संकल्पयेच्छिष्यं सा दीक्षा मानसी मता
ciraṃ śuśrūṣayā samyaktoṣito deśikeśvaraḥ / tūṣṇīṃ saṃkalpayecchiṣyaṃ sā dīkṣā mānasī matā
When, through long and faithful service, the Lord among teachers is rightly pleased, he silently resolves within to accept the disciple; that is held to be the mental initiation (mānasī dīkṣā).