"Some months after that the Master Morya came to us one day... He walked through the room where I was in order to communicate with Madame Blavatsky, Who was in her bedroom... I saw the Master Kuthumi under similar conditions on the roof of our Headquarters at Adyar.... as though He had just materialized from the empty air on the other side of it. I have also many times seen the Master Djwal Khul on that roof in the same way."
January 1, 1970
https://en.wikiquote.org/wiki/The_Masters_and_the_Path