This work depicts the relationship between the third-dimensional world and a higher dimension, expressed through a portal-like threshold that appears as a luminous membrane or window. The membrane defines the boundary between two fundamentally different realms of existence. It separates, yet does not completely isolate, the worlds on either side.

The higher dimension is not shown directly; instead, it is perceived through the distortion, diffusion, and transformation of light as it passes through the membrane into the third-dimensional space. This threshold marks the point where ordinary perception reaches its limit. Crossing it does not involve physical movement, but transformation. Only by becoming a purified, non-material state—represented here as light—can passage occur.