ति महाद्युतिः; 'स्वयं ज्योतिः' इति श्रुतेः; 'ज्योतिषां ज्योतिः' इत्यादेश्च ।इदं तदिति निर्देष्टुं यन्न शक्यते परस्मै स्वसंवेद्यत्वात् तत् अनिर्देश्यं वपुरस्येति अनिर्देश्यवपुः ।ऐश्वर्यलक्षणा समग्रा श्रीर्यस्य सः श्रीमान् ।सर्वैः प्राणिभिरमेया बुद्धिरात्मा यस्य सः अमेयात्मा ।महान्तमद्रिं मन्दरं गोवर्धनं च अमृतमथने गोरक्षणे च धृतवानिति महाद्रिधृक् ॥
In plain words
He is Great Radiance, as the Upanishads declare Him to be self-luminous and the very light of lights. Because He cannot be pointed to as a mere external object, being knowable only through direct self-revelation, His form is Indefinable. He is Śrīmān, one whose splendor embodies absolute sovereignty. He is Ameyātmā, whose essence defies all measurement by any living being's intellect. And He is the Holder of Great Mountains, for He lifted both Mount Mandara during the churning of the ocean and Govardhana to protect the flocks.
Close to the Sanskrit
Mahādyuti, because of the Shruti 'Self-luminous' and the scriptural command 'The light of lights.' Because that can not be pointed out as 'this' or 'that' to another due to being knowable solely by Himself, Anirdeśyavapuḥ is His form. Śrīmān is He whose splendor is complete, characterized by sovereignty. Ameyātmā is He whose intellect and self are immeasurable by all living beings. Mahādridhṛk is the holder of great mountains, because He held the great mountain Mandara during the churning for nectar and Govardhana during the protection of cows.