The brotherhood of the law : The First Ray of Incarnation.
The First Ray is the blue ray. If you are a blue ray soul then you have blue as your soul colour. You are from the Buddhaic plane
Of existence and a faithful teacher of the law of one. The first ray has the purpose of being the ray which manifests the Will (unity)and Power of God(unconditional love). The Chohan of the ray, a single Ascended Master focuses the Christ Consciousness of the ray. The Chohan of the blue ray is El Morya.
If you are a 1st ray soul then your are working to acquire some of the qualities of the ray - personal power, God's will over your own freewill, focus, purpose and balance.
There are many Ascended Masters working on the 1st ray - most of them are men. One of these Masters will be assigned to you to act as teacher. Your Teacher is usually with you for life. You can also be assigned to other Masters working on other rays, for higher learning or if you are working on some aspect of your personality.
Some of the First Ray Masters are, El Morya, Melchizedek, St John, the Baptist, Metatron, Krishna, Mahakala, Osiris, Thomas Merton and Moses (Lord Ling).