The concept of multiple dimensions and multiverses is indeed a topic of speculation and exploration in theoretical physics. While there are various theories suggesting the existence of additional dimensions beyond the familiar three spatial dimensions and one time dimension, the nature and properties of these dimensions are still subjects of active research and debate within the scientific community.
Regarding the existence of non-material or spiritual realms within these hypothetical dimensions or multiverses, it's important to note that such claims generally fall outside the realm of scientific inquiry. Science, as a discipline, focuses on empirically testable hypotheses and relies on observations, measurements, and experimentation to understand the natural world. Phenomena that are considered spiritual or related to consciousness often involve subjective experiences that are challenging to quantify and objectively study using scientific methods.
While physics can explore and speculate about the nature of reality, including the possibilities of additional dimensions or multiverses, the exploration of spiritual or consciousness realms generally falls within the domain of philosophy, metaphysics, or personal belief systems.
It's worth emphasizing that the scientific and spiritual perspectives can coexist and address different aspects of human experience. Science provides explanations based on empirical evidence and rational inquiry, while spirituality often encompasses personal beliefs, subjective experiences, and questions related to meaning, purpose, and the nature of existence.