Bhagavad Gita Chapter 15, Verse 19

यो मामेवमसम्मूढो जानाति पुरुषोत्तमम् | स सर्वविद्भजति मां सर्वभावेन भारत ||

yo mām evam asammūḍho jānāti puruṣottamam sa sarva-vid bhajati māṁ sarva-bhāvena bhārata

He who, undeluded, knows Me thus as the Supreme Person, he, knowing all, worships Me with his whole being, O Arjuna.

Krishna reveals the result of knowing Purushottama: 'Yo mām evam asammūḍho jānāti puruṣottamam'—he who, undeluded, knows Me thus as the Supreme Person. The key is being 'asammūḍhaḥ'—without delusion. Most people are deluded—they see Krishna as just a teacher, a friend, a historical figure. But those without delusion see Krishna as Purushottama—the Supreme Person. 'Sa sarva-vid bhajati māṁ sarva-bhāvena'—he, knowing all, worships Me with his whole being. When you know Purushottama, you become 'sarva-vid'—knowing all, because knowing Purushottama is knowing the source of everything. And you worship 'sarva-bhāvena'—with your whole being, not just intellectually or partially, but completely. This is the result: knowing Purushottama leads to complete knowledge and whole-hearted worship. Understanding this transforms your spiritual practice: not just learning about Krishna, but knowing Him as Purushottama and worshiping Him with your whole being.