Write a detailed note on the nature of Brahman according to Mundaka Upanishad.

The Mundaka Upanishad, a profound philosophical text within the Vedanta tradition, provides deep insights into the nature of Brahman, the ultimate reality. Brahman is depicted as the absolute, eternal, and transcendent essence that underlies and pervades the entire cosmos.

According to the Mundaka Upanishad, Brahman is described as "that from which everything arises, in which everything exists, and into which everything ultimately merges." This characterization emphasizes Brahman's role as the source, sustainer, and ultimate destination of all existence. Brahman is not merely a personal deity but is beyond all attributes, forms, and limitations.

Furthermore, the Mundaka Upanishad elucidates the concept of Brahman through the metaphor of two birds sitting on the same tree: one represents the individual soul (jiva), immersed in worldly pursuits and experiencing the fruits of its actions, while the other symbolizes Brahman, the witnessing consciousness that remains untouched by the fluctuations of the world. This metaphor illustrates Brahman's transcendence beyond the individual self and its identification with the universal consciousness.

Moreover, the Mundaka Upanishad emphasizes the path to realizing Brahman through knowledge (jnana) and meditation (dhyana). It asserts that true wisdom comes from realizing the unity of the individual self (atman) with Brahman, transcending the illusions of duality and plurality. Through introspection, contemplation, and spiritual practice, one can attain direct experiential knowledge of Brahman and realize one's essential nature as identical with the supreme reality.

In summary, the Mundaka Upanishad presents Brahman as the ultimate reality, beyond all limitations of time, space, and causality. Brahman is the source of all existence, the substratum of the cosmos, and the essence of pure consciousness. By transcending the egoic self and realizing one's identity with Brahman, individuals can attain liberation (moksha) from the cycle of birth and death and experience the eternal bliss of union with the divine.