Chapter 11 · The Vision of the Universal Form · Arjuna said
Bhagavad Gita 11.18 — Guardian of eternal dharma
त्वमक्षरं परमं वेदितव्यं त्वमस्य विश्वस्य परं निधानम्। त्वमव्ययः शाश्वतधर्मगोप्ता सनातनस्त्वं पुरुषो मतो मे ॥
tvamakṣaraṃ paramaṃ veditavyaṃ tvamasya viśvasya paraṃ nidhānam | tvamavyayaḥ śāśvatadharmagoptā sanātanastvaṃ puruṣo mato me ||
Meaning
You are the imperishable Supreme, the one truth to be known; you are the final resting place of this universe. You are the undying protector of eternal dharma, the timeless Person — this is my belief.