Diamond heart
A concentration of the sacred fires of the will of God that coalesce as a diamond matrix in the hearts of devotees of God’s will, his divine plan and his inner (etheric) blueprint for all life. Hence, a term used to describe the heart of the ascended masters, angel devas, and chelas who embody the will of God; often associated with El Morya and Mary the Mother of Jesus.
The Diamond Heart of God possesses the quality of the diamond, its hardness resisting every sinister strategy of the anti-Self and the anti-Will. At the same time it reflects the brilliance of Love/Wisdom throughout the creation—magnifying and projecting the prismatic virtues and charismatic powers of the Holy Spirit embodied by the ascended and unascended sons and daughters of God.
See also
For more information
Mother Mary, “The Order of the Diamond Heart,“ Pearls of Wisdom, vol. 51, no. 6.
Jesus Christ, “The Hour of Thy Victory Draweth Nigh,“ Pearls of Wisdom, vol. 30, no. 84.
Jesus and Kuthumi, Corona Class Lessons: For Those Who Would Teach Men the Way, pp. 90–91.
Sources
Mark L. Prophet and Elizabeth Clare Prophet, Saint Germain On Alchemy: Formulas for Self-Transformation.