Ven. Chin Kung on deep concentration
In Buddhism, understanding of the true reality of life and the universe is achieved through a high level of moral self-discipline, deep concentration, and wisdom. Deep concentration gives rise to the wisdom needed to understand the truth of the universe. This is why the great sages and virtuous people of this world diligently practice deep concentration and meditation to witness the true existence of spiritual planes and infinite dimensions. This confirms the eternal presence of the Identity of Ego and Brahman, God, True Mind, the Holy Spirit. This is the creator. From here, we know that all sentient beings in the universe are one entity.
--Master Chin Kung, “Harmony and Unity,” in The Awakening of Loving-Kindness