That’s gorgeous, Mik5. Thanks for sharing.
My issue with that article is that it’s not practical. Once you take it down from atop the fluffy cloud it’s lying on, you realize that there are many ways a person can show that he is focusing on building a relationship with Hashem. The one action of keeping one’s eyes closed during Shemoneh Esrei means absolutely nothing if the person whose eyes are closed is thinking about things other than Hashem as his eyes are closed, and a person can have the utmost kavanna while his eyes are focusing on the red tile on the floor in front of him, you know?
The idea that the action of closing one’s eyes is what determines whether he feels terror or happiness at the moment of his death is troubling.