Focussed attention has become very rare. In our world of constant diversion and partial attention, Man is being reconditioned to constantly react to new stimuli, making it challenging to concentrate.
Light enables us to work independent of natures day and night rhythm. It frees us from Natures dictate of time whereas life used to calm down at night and Man had the opportunity to reflect on the days work, he is now overwhelmed, even at night, with the flickering glory of distraction.
Our Lamps heavy presence makes it laborious to direct its light thus stimulating undivided focus and attention.