Bhagavad Gita 6.14

प्रशान्तात्मा विगतभीर्ब्रह्मचारिव्रते स्थितः।मनः संयम्य मच्चित्तो युक्त आसीत मत्परः ॥६.१४॥

praśāntātmā vigatabhīrbrahmacārivrate sthitaḥmanaḥ saṃyamya maccitto yukta āsīta matparaḥ

Serene-minded, fearless, firm in the vow of a Brahmachari, having controlled their mind, thinking of Me and balanced in mind, let them sit, having Me as their supreme goal.

गीता