Letters In Heaven

Who carries the letters in Heaven Is it the long gone postal men Do they pass them off with just a thought Or write them down in pen I'm guessing that the mailbox Outside your mansions door Is packed so tight each day and night Cause we always send up more If you find the time to read Each letter that we send You'll find they all have the same I love you at the end Please cherish all our letters Each one comes with our love We miss you now but soon enough We'll share our home above