Exploring the metaphysics in Chapter 33, how does the symbolism of Udi serve as a constant reminder of non-dual reality where 'Brahman alone is real'?

Chapter 33 presents Udi not just as a blessing, but as a profound metaphysical teaching tool. The chapter explicitly states that the Udi is a sign that 'Brahman alone is real, the cosmos is infinite' and that the visible universe is like ash. The process of burning wood (representing the body and the material world) in the Dhuni to produce ash (Udi) is a direct, physical demonstration of the impermanence of all forms. By giving this Udi, Baba was providing a tangible reminder to distinguish the unreal (Maya, the illusory world) from the Real (Brahman, the ultimate truth). As this chapter explains, the ash signifies the final state of all material things, urging the devotee to maintain this awareness day and night and to transcend worldly attachments and the sense of 'mine' and 'another's'.