Diameter

Expressions researched:
"diameter" |"diametrically"

SB Canto 2

SB 2.2.28, Purport:

Śrīla Śrīdhara Svāmī confirms that a part of the material nature, after being initiated by the Lord, is known as the mahat-tattva. A fractional portion of the mahat-tattva is called the false ego. A portion of the ego is the vibration of sound, and a portion of sound is atmospheric air. A portion of the airy atmosphere is turned into forms, and the forms constitute the power of electricity or heat. Heat produces the smell of the aroma of the earth, and the gross earth is produced by such aroma. And all these combined together constitute the cosmic phenomenon. The extent of the cosmic phenomenon is calculated to be diametrically (both ways) four billion miles. Then the coverings of the universe begin. The first stratum of the covering is calculated to extend eighty million miles, and the subsequent coverings of the universe are respectively of fire, effulgence, air and ether, one after another, each extending ten times further than the previous. The fearless devotee of the Lord penetrates each one of them and ultimately reaches the absolute atmosphere where everything is of one and the same spiritual identity. Then the devotee enters one of the Vaikuṇṭha planets, where he assumes exactly the same form as the Lord and engages in the loving transcendental service of the Lord. That is the highest perfection of devotional life. Beyond this there is nothing to be desired or achieved by the perfect yogī.