Initiation is a process of breaking down of the physical, emotional, mental, and higher barriers. These barriers can be our ego, vanity, attachements, fears, or even beliefs and habits. The path of initiation is the path of greater freedom.
"Every initiation is a breaking down of barriers that exist on the way of our total freedom. These barriers can be our own creation, as the sound barrier of a jet plane. They can also be our accumulated karma on many levels or the seven vehicles which we use. Initiation is going beyond barriers.
"…To take initiation means to enter a higher level of consciousness or a deeper relationship, communication, or awareness. Some people think that when a Master initiates you, you suddenly expand your consciousness and you are purified and perfected. On the contrary, real initiation is a process of great labor, through which you gradually build your vehicles of communication and through them achieve greater relationship with the centers of light, love, and power within the planet and the solar system.
"In each initiation, one must prove his usefulness in the world. All initiates are known only by their service. No one has the right to declare his degree of initiation, or yours for that matter. Others must only see his service, his shining beauty, his purity, and receive inspiration from him. The knowledge of his initiation must remain between him and his Initiator."
Extended Book Review on Initiation, the Path of Living Service by Dr. Robert Constas.