Isaac is a Celestial Engineer who can "recharge his batteries" whilst he works. He works for weeks, then he takes a few days' holidays.
Mostly on our world.
Illawarra District, Australia, December 12, 2006.
Celestial Engineer, Isaac.
Subject: “Perpetual Motion.”
Received by George Barnard.
Isaac: “You are human. You are the babies of the universe. By your very make-up you need to exist in the physical realm where you are capable of perceiving; in which you can lead your lives. For you it is difficult enough to consider the existence of the morontia world -- a physical world in which I live, and which is separated from you only in time. It is even more difficult for you to understand the spiritual world, how, and in what way, spiritual reality can exist.
“It must be difficult for you to understand how spiritual circuits can be connected up throughout the universes when every single thing in the seven superuniverses is in constant motion. For me it is necessary to have a brain and mind that can do the incredible calculations in a short space of time about how to connect up the morontia circuits. This is Isaac. You class me, as a Celestial Engineer. You have listened to my words and my lessons on rare occasions. This is the first time we make direct contact. I greet you both.”
George: “Hello Isaac!”
Isaac: “Ever since your early days you have been a rebel, not accepting of anything religious that was, shall we say, pushed down your gullet; not accepting of anything regarding the physical laws of this world. Unbeknownst to you, we have been working with you. We advise you that perhaps the time is right for you to go ahead with your project without expecting to hit the nail right on the head the very first time around.
“I promise you that I will be aware of your struggles. I shall be close at hand. I will intuit you to the best of my ability. Indeed, my human friend, perpetual motion is not just a possibility. Perpetual motion devices are realities on many of the planets which I regularly visit. This is Isaac, experiencing a lengthy holiday on your lovely planet, due to be back on duty within a few of your hours.
“I do so enjoy your wonderful environment. I thank you for your attention. Goodbye for now.”
George: “Thank you, Brother.”
Note: Isaac is a helpful friend, who does things beyond the call of duty, apart from working with Melchizedeks and Life Carriers.
My attempts to produce a zero-input perpetual motion device met with failure. Isaac wants us to proceed with it; try again.
I hope you haven't waited long. 
