Introduction
This essay contributes to the mind-body debate by investigating one of our most fundamental faculties: spatial perception. The argument is based on the simple observation that the heightened sense of immediacy experienced during transcendence occurs when one's perspective is released from the task of perceiving space.
We use a variety of cues to perceive depth; motion is only one of many. One of the most powerful cues to depth, especially at short distances, is binocular disparity, the difference in the images received by each eye. Additionally, we make use of accommodation, the thickening and thinning of the lens of the eye to better focus on near and far objects respectively. Additionally, we use a number of "pictorial" cues to depth, such as the fact that nearer objects occlude further objects (occlusion), nearer objects are larger than further objects (relative size) and are further from the horizon (relative position).
Although motion is not the only means by which depth is interpreted, it distinguishes itself from all other depth cues by virtue of its temporality. Depth variations revealed by motion are determined across time. The mind determines the shape of an object, or an empty space, based on how its appearance changes over time. However, the changes in appearance only make sense to the extent that they are relative to the observer's perspective. So, the observer's perspective is effectively harnessed by the process of determining depth through motion. It becomes a "tool" for determining depth and, as a result, our sense of immediacy is dulled.
Space seems like a solid foundation for presence, however, it is not as fundamental as it seems. As far as perception is concerned, it is a façade that masks a fluid realm. Paradoxically, this fluid realm is more resilient than space, because it is the foundation for spatial perception. Perhaps this is why a spiritual connection seems deeper than a material one.
When we sense the correlation between apparent movements in the scenery and our own movements, subject and object merge. However, when we use the resulting sense of presence to determine the depth of space before us, subject and object become separated. So, whereas the conscious mind understands itself as being separate from its surroundings, the subconscious mind is intimately connected with its surroundings, since it perceives its own presence through the changing appearance of its surroundings.
Through meditation it is possible to retract one's awareness from the world, and in so doing dissolve the division between one's perspective and the object of one's attention, such that one's very perspective becomes the object. Then, one does not see the surroundings so much as the movements in the surroundings that indicate one's own motion. One sees the world as the subconscious sees it and the here-and-now becomes palpable.
The “sharp distinction between the individual and everything else” only applies to our spatial presence. Our immediacy extends beyond this boundary. The so-called inner and outer worlds are intertwined within our consciousness. One's perspective emerges from the changing appearance of one's surroundings and the so-called "outer" reality only gains its spatial character from the projection of one's own presence. What emerges from this discussion, however, is a distinction between "spatial" and "fluid" paradigms, where space is in fact ‘imagined’ and the nature of transcendence extends beyond our physical boundary.