The strength of that heart is such that the world cannot pull it; it has endured bitter betrayal in life.

This profound couplet speaks to the deep wounds of disillusionment. The poet suggests that the heart's resolve, its very 'jauṛ' (strength), cannot be pulled away or controlled, because a lifetime of severe betrayal has already weakened its attachment to external forces. It's not a physical weakness, but an emotional exhaustion—a resignation that nothing can truly break the spirit once it has been so thoroughly tested by life's cruelties.