Christ sacrificed Himself so that mankind might be freed from the imperfections of the material nature and endowed with the virtues of the spiritual nature. This spiritual nature, which has come to exist through the grace of the divine Reality, is the sum of all perfections and proceeds from the breath of the Holy Spirit. It is the divine perfections; it is light, spirituality, guidance, exaltation, high-mindedness, justice, love, generosity, kindness to all, and charitable deeds: It is life upon life. This spiritual nature is an effulgence of the splendours of the Sun of Truth.
—‘Abdu’l-Bahá, Some Answered Questions