In Bhagavad Gita Chapter 15, Verse 3, the dialogue takes a startling turn. While Verse 1 introduced the "Inverted World Tree," Verse 3 reveals the limitations of the Gita's speaker and provides the specific weapon needed to escape the 21 universes of Kaal.
"The form of this creation is perceived neither as its beginning, nor its end, nor its foundation. Here in this discussion—in the knowledge of the Gita being imparted by me—even I do not have full information; because even I do not know the proper state of the creation of all the brahmands. This strong-formed Ashwattha tree, having a permanent state, must be cut down with the determined weapon of unsmeared Tatvgyan (Pure Knowledge)."
Most commentators gloss over the phrase "na samprtishtha," but the detailed translation reveals a critical truth for every seeker: The Giver of the Gita is not Omniscient.
The verse provides the "Asanga-shastren"—often translated simply as "detachment," but more accurately defined as the Weapon of Unsmeared Tatvgyan.
It is Pure Knowledge that has not been "smeared" or corrupted by:
To "cut down" the strongly rooted tree means to realize that the worship of Niranjan (Kaal) is short-lived.
The translation emphasizes that the weapon must be "Driden" (Determined). Because the roots of this material world are "strong-formed," a seeker cannot escape with weak or doubtful faith. One must be firmly determined to:
Because the speaker is Kaal Brahm, the master of only 21 universes. The "Roots" of the tree (Purna Parmatma) and the "Total Brahmands" (including the 700 quadrillion universes of Akshar Purush and the infinite Satlok) are beyond his complete understanding and jurisdiction.
Knowledge is a weapon because it destroys ignorance. When you receive Pure Tatvgyan, you see that worshipping the "branches" (Brahma, Vishnu, Shiva) cannot nourish the "root." This realization "cuts" your attachment to lower, fruitless forms of worship.
As per Gita 4.34, only a Tattvadarshi Saint can impart this knowledge. They are the only ones who can explain the "World Tree" in detail and provide the mantra that acts as the sharp edge of the sword.