During the Transfiguration, I find the words of St. Peter to Jesus to be almost surreal, off topic so to speak: "...it is good for us to be here". What incited him to say this? What did he really mean by that? I wonder.
I have often pondered that same question - I think it was one thing - good St. Peter was overwhelmed with awe. He knelt down before his transfigured Lord and his soul steeped in awe said "it is good for us to be here..."St. Peter - Ora pro nobis!