Luke's account of the nativity was so detailed and personal. After sifting through all the written accounts, he must have interviewed Mary (Luke 1:1-4). When his 'notebook' was full of verbatim comments, we can imagine him asking, ‘So, after the shepherds had left, and there was just Jesus with you and Joseph, what did you think, how did you feel?’ He simply recorded, "Mary treasured up all these things and pondered them in her heart".