I have been doing a 'Word for the Day' and last night I settled on 'Glory' with the scripture Ps 149:5 'Let the Saints be joyful in glory, let them sing aloud on their beds.'  I also was sensing the singing theme throughout the day.  As I read through 'Glory' scriptures  I was intrigued by the ones that spoke of the Priests being so overcome by the glory that they couldn't continue ministering in the house of God because the Glory filled the place. I think singing to the Lord is a way to enter in to the glory.  Thank you for sharing the link to Francis Frangipane's article. It was beautiful to read.
L Lee