What type of wood was in the bundle of firewood Baba touched with his toe, and what is its specific symbolism in Hindu traditions before a procession?

Chapter 37 mentions that before setting out for the Chavadi, Baba would go to a wall where a bundle of firewood was kept, but the text does not specify the type of wood or its particular symbolic meaning. The narrative's focus is squarely on Baba's actions and their place within the procession's routine. It describes how He would move His right big toe at that spot, wave His hand over the burning flame to extinguish it, and only then set out. This act was part of the beautiful and incomparable ritual of the procession, with the significance being in Baba's personal action rather than the material composition of the firewood itself.