What about during sleep? Isn’t sleep a cost-effective substitute for the calm people seek in expensive spas? Do you find calm, then?
Dreams, of course, interrupt peaceful slumber, and then there’s the potential to fall off the bed. But why is that potential mostly potential? Why do you not tumble to the floor each night? Are you aware of where you are even during your unconscious period? Is your sense of place so important that you can’t ignore it even if you wanted to? Are you only rarely awakened by the thought that you don’t know where you are?
Place is so primary to us that we are driven to keep constant track of our relationship to the world. You realize that you can fall asleep with a high level of confidence that you won’t forget where you are. Only occasionally does someone fall out of bed or twitch in a dreamt fall. Could it be that our “grid cells” work without a break?
Apparently, grid cells don’t rest. At least, that seems to be the finding of G. Trettel and others in “Grid cell co-activity patterns during sleep reflect special overlap of grid fields during active behaviors.” The authors say in their online abstract:
“…we explore whether cell-cell relationships predicted by attractor models persist during sleep states in which spatially informative sensory inputs are absent. We recorded ensembles of grid cells in superficial layers of medial entorhinal cortex during active exploratory behaviors and overnight sleep. Per pair and collectively, we found preserved patterns of spike-time correlations across waking, REM, and non-REM sleep, which reflected the spatial tuning offsets between these cells during active exploration. The preservation of cell-cell relationships across states was not explained by theta oscillations or CA1 activity. These results suggest that recurrent connectivity within the grid cell network drives grid cell activity across behavioral states.”*
Knowing where we are is a key to finding serenity. It’s not the only key, but it’s definitely one we can’t ignore even in our unconscious state. And then there’s this from The Guardian:
“According to a study commissioned by the National Trust, people experience intense feelings of wellbeing, contentment and belonging from places that evoke positive memories far more than treasured objects such as photographs or wedding rings.”**
The study by Surrey University researchers sought to define the relationship between people and place in establishing serenity. “This visceral but intangible feeling is something the National Trust set out to explore; to understand the depth of people’s connection with place. This is the first piece of research of its kind and has revealed that meaningful places generate a significant response in areas of the brain most commonly associated with positive emotions; demonstrating the strong emotional connection between people and places.”**
Maybe we already knew this, but it’s reassuring to know that our awareness of place plays an important role in our finding ataraxy. The studies also imply that some places, such as decaying neighborhoods and war zones, can thwart an individual’s attempts to find inner peace. Those who cannot afford to go to a special restive place or who are trapped in disorder and disruption are aware even in their sleep that serenity lies elsewhere. Our knowledge of place’s importance in establishing serenity underlies even our economic drives when we refashion and revitalize homes and neighborhoods.
Our search for peace is ceaseless and originates within our entorhinal cortex. Ironic. The search for serene restfulness is driven by the ceaseless activity of our grid cells.
* Sean G. Trettel, John B. Trimper, Ernie Hwaun, Ila R. Fiete, Laura L. Colgin. doi: https://doi.org/10.1101/198671, Online at bioRxiv, Cold Spring Harbor Laboratory https://www.biorxiv.org/content/early/2017/10/05/198671
**Study conducted through fMRI by the National Trust through Surrey University and headed by Nino Strachey. https://www.theguardian.com/education/2017/oct/12/wellbeing-enhanced-more-by-places-than-objects-study-finds