Masters of Wisdom are men like us who have gone ahead of us in evolution and have now perfected themselves by the very same steps we are taking today. They have learned the every lesson the earth has to teach them, have undergone every disappointment, humiliation, and pain, and are now members of the Spiritual Kingdom or the Kingdom of God or Heaven. Therefore the earth has no further to offer them and most of them have moved on to other higher planets within and outside our solar system.
They have many names, the Great White Brotherhood, the Society of Illumined Minds, the Elder Brothers of humanity, the Teachers, the Guides, the Mahatmas, the Masters of Wisdom and Lords of Compassion. As a group they are known as the Spiritual Hierarchy. Ordinary people refer to them, as Angels and they are the Angels mentioned in Christianity.
Some of them have remained on earth for millennia living occultly in the mountainous and desert regions of earth beneficently overseeing the evolution of their fellow men and women. Some of them are quite well known names in every field of human endeavour both religious and secular such as science, philosophy, literature, art, music, economics, and politics.
Those who are in incarnation, some of them were born to the world in the normal way while others live in their self created bodies of illusion (mayavirupa). They do not suffer from diseases as we do, do not grow old as fast as we do and some of them are thousands of years old. They do not even have to eat, drink or sleep and can appear and disappear at will. They are omniscient and omnipresent and are able to see the past, present and future as one in the eternal now.
All the Masters belong to one of the 7 major ashrams (groups) depending on their soul ray. Master Morya (St Peter) is a Master in the first ray ashram. Master Koot Humi (St John the Beloved) and Master Djwhal Khul (writer of Alice Bailey teachings) are in the 2nd ray ashram. English master is in the third ray ashram. Master Serapis, Mozart and Beethovan are Masters in the 4th ray ashram. Master Hilarian (St Paul) is a Master in the 5th ray ashram. Master Jesus and the Master who was Madonna are in the 6th ray ashram. Master Rakoczi is a Master in the 7th ray Ashram. He was known as the Comte de St Germain and, before that, in England, He was known as Roger Bacon and later again as Francis Bacon.