The Center For True Health describes distant reiki treatments as follows:
What is Distance Reiki Healing?
Distance Reiki is a technique within the system of Reiki that enables you to give a Reiki session beyond the limitations of time and space. It expands the practitioner’s ability to transmit spiritual energy beyond physical touch. In other words, it’s a way to offer Reiki without the recipient being in the same room with you.
Why do I prefer calling it Absentee Healing?
From a traditional Japanese Reiki perspective, the Reiki Absentee Healing Technique focuses on offering Reiki from a state of Oneness, or connection to everything. In this way, you aren’t “sending” Reiki, instead you’re feeling one with another person and sharing Reiki this way.
The word distance implies separation (the opposite of being in a state of Oneness) so I prefer using the word absentee instead. For me, this is further supported by the use of the Reiki symbol and mantra HSZSN (often referred to as the Distance Reiki symbol) in conjunction with the Absentee Healing technique. HSZSN is all about helping us be in a state of Oneness.
How Absentee Reiki Works
The Absentee Reiki Technique is usually 15-20 minutes long, but can continue longer if you like. The practitioner schedules a time and date with the recipient (or client) for the Absentee Reiki session. By setting up a specific time the recipient can be in a receptive state (such as lying down or meditating during the treatment).
In advance of the session, the recipient will also email a photo of themselves to the practitioner, along with their name, age, location and any intention they have of what they want the session to support (e.g. a physical or health issue, goal, or challenge). Having these details will help the practitioner connect to the client or recipient if they haven’t met before. Read More

The knowledge of modern quantum physicists involves an understanding of Wave/Particle Dualism, which helps to explain the ability of reiki practitioners to perform non-local (distant) treatments. (See below)
‘The new quantum mechanical notion of relationship follows as a direct consequence of the wave/particle dualism and the tendency of a “matter wave” (or “probability wave”) to behave as though it were smeared out all over space and time. For if all potential “things’ stretch out indefinitely in different directions, how does one speak of any distance between them, or conceive of any separateness? All things and all moments touch each other at every point. The oneness of the overall system is paramount. It follows from this that the once ghostly notion of “action-at-a-distance,” where one body can influence another instantaneously despite there being no apparent exchange of force or energy, is, for the quantum physicist, a fact of everyday reality. It is a fact so alien to the whole framework of space and time that it remains one of the greatest conceptual challenges raised by quantum theory.’ The Quantum Self, by Danah Zohar (1991)

The Peaceful Runner describes Distant Reiki Treatments in the following way:
We accept other energy frequencies that we cannot see, such as electricity, radios, cell phones and wi-fi. Initially, these frequencies were thought to be too unbelievable to be true, but now they are accepted as normal functioning services. In order for them to work, they have to be tuned in and Distant Reiki works the same way.
The Reiki practitioner acts as a conduit and tunes the healing energy to the person it is being sent to and then it flows through the energy currents that exist naturally. Distance is not an obstacle for Reiki in the same way that it isn’t for cell phones or the internet. Read More
