nimlocati ravāv āsīd
veṇūnām iva mardanam
When there is need of fire in the forest, by the will of the Supreme it takes place due to friction among the bamboos. Similarly, the descendants of Yadu were all destroyed by the will of the Lord by the process of self-destruction. Just as there is no possibility of a fire’s occurring deep in the forest due to human effort, so also there was no power in the universe which could vanquish the descendants of Yadu, who were protected by the Lord. The Lord wanted them to be so destroyed, and thus they obeyed His order, as indicated by the word tad-anujñāta.