Three sacred what?

Sacred symbols. Sacred in the 'highly respected' sense, and not the religious sense (remember, Reiki is neither religion nor a cult!). And as far-fetched or downright bizarre as it may appear to many, if not most people, these symbols are what Reiki II is pretty much all about. Even weirder still, these symbols work. Every time. In Chantal's words:

"When I learned Reiki II and the Reiki Master began talking about symbols, I thought that I had somehow become trapped in a very surreal version of Twilight Zone-meets-New  Age mumbo-jumbo. Though everyone else in the workshop obediently accepted all that was taught, I needed proof! Through much personal experimentation, and the experiences of clients and students, the symbols have been shown to be effective each time."

Each of the three symbols has a purpose. The first is used to maximise the power of the Reiki, the second has mental and emotional healing applications, and the third symbol is used to enable one to send Reiki by distance.

Distance?

Reiki energy can be sent to anyone/anyplace/anything at any time?

The answer to this one would be the old "where thought goes, energy flows". Think of the Distance Symbol as an international telephone dialling code-once the symbol is drawn and the intent stated, the recipient immediately receives the Reiki. The principles of this "action at a distance" can be found within the theories of Quantum Physics.