Remember, eyes open

Malcom Maclean, The Lord's Supper (Mentor, 2009):

When Jesus instructed his disciples to remember him by means of the Lord’s Supper he was not asking them to shut their eyes and engage in mental imagination in order to recall his death (which is a common response today at the Lord’s Table). Rather he asked them to use the symbols of bread and wine as signs pointing to his death. In doing so, he arranged for the Lord’s Supper to be a visual, as well as a verbal, reminder in a similar way to how the Passover was a visible reminder to Israelites. (p19)