If you're interested in exploring this topic further, I can suggest some resources or texts that might be helpful!
Jeeva-brahma-aikya-vedanta-rahasyam is a Sanskrit work (often discussed in modern Indian spiritual literature) concerning the Vedantic doctrine of the identity of the individual self (jīva) with Brahman — exploring nondual realization, ontological status of the self, means of liberation, and practices for realizing jīva‑Brahman unity. Jeeva-brahma-aikya-vedanta-rahasyam-pdf
The title translates to "The Secret of the Oneness of the Soul and Brahman," and its teachings typically center on the following Advaitic principles: Jeeva-Brahma Aikya If you're interested in exploring this topic further,
The end of the Vedas; the ultimate philosophical conclusion. The secret or deep mystery. At its core, this text—often attributed to Sri Paramahamsa Sachithanantha Yogeshwarar ontological status of the self