यदा भूतपृथग्भावमेकस्थमनुपश्यति ।
तत एव च विस्तारं ब्रह्म सम्पद्यते तदा ।। १३.३० ।।

yadā bhūta-pṛthag-bhāvam-ekastham-anupaśyati |
tata eva ca vistāraṃ brahma sampadyate tadā || 13.30 ||

Once this central core perception is gained, there results an expansion in the mind and intelligence, raising the seeker’s vision to a universal dimension.

Then is the Brāhmic vision attained when all the diverse existence is clearly perceived as inhering in the same single source, and everything else is viewed as but its own extensive expression.

It is the physical law that material bodies are born of or evolved from other material bodies, as pots from clay or nails from steel. But when you begin to think of how the material universe, as a whole, has been evolved, the premise is altogether different. The entire materiality is an expansion from something inmost to it. The entire visible materiality, says Krishna, inheres in the one single source. Not only it inheres so, all the variety and diversity called the visible universe has merely sprung from it.

When the seeker is able to realize in himself the Truth of Oneness with regard to the plurality that senses display around, he attains Brāhmic dimension. The world continues to be various and extensive before the senses, but the Knower perceives it as a mere extension of what his body seemingly hosts within it as the core. In this light, the Soul is no more encased in the body, but becomes a universal permeation. With that arises the striking expansion gracing the seeker’s mind and intelligence.