Here is a good definition of what an Ascended Master is:
Ascended Master - a being who has become Self-Realized and serves humanity; A being who has raised his/her vibration to a sustained frequency of light. He/she can come and go at will from the earth plane without the Birth//Death cycle.
Self-Realization - the awareness of our complete and indivisible union with God, which we are. This also means that the ego-self has come to know itself so clearly, so lovingly, so wisely that it is no longer run by the illusory sense of self that the ego presents. When one is in the Illumined State or Self-Realized, there ceases to be any more inner or outer drama. The personal ego-self has surrendered fully and willingly into the loving embrace of the Soul
My Personal Connection with the Ascended Masters
I spent a lot of time in the forest asking my Angels for the truth about life, the truth about everything. I told them to send me teachers that would devote their time to working with me on a daily basis.
The teachers did appear, and they called themselves the Great White Brotherhood. They explained that they are a group of men and women who have mastered life on Earth. Jesus, Mother Mary, Buddha, St. Francis, and many others are apart of this Brotherhood. They told me that they are also known as the Ascended Masters.
These spirit teachers changed my entire life. They taught me how every thought and feeling I have is creating my future. They taught me how to feel my feelings and change the mental/emotional thought patterns that I have been carrying from this life and past lives.
I was very much invested in improving myself and my life so I listened to what they had to say, even though I was very young and often didn't understand how valuable the information truly was.
They told me to not read any books on the material they were teaching me because they wanted my connection with them to be truly authentic. I stayed true to this until they directed me otherwise.
After 5 years of their counsel on my own life, the Brotherhood told me that they want me to do this for others. They said, "In the manner you hear us, you can also hear people's Guides as well. You can help them with their lives in the manner we help you with yours."