When one learns to withdraw attention from the senses, one can then enter into real concentration, which is called Dharana. Real concentration is the ability to place attention on something and not be distracted from it.
Dharma
(Sanskrit धर्म; Tibetan chö) A word with many levels of application. Dharma literally means “Law or Justice personified, righteousness, duty, merit, statue, practice, religion, observance, relating to justice or virtue, law, thing, ceremony, good works, character, propriety of conduct, morality or ethics, virtue.” Generally: the inner constitution of a thing, which governs its growth. Also, the Law or the Way. The Tibetan version chö implies “change” or “bringing transformation.” The spiritual teachings themselves are the Dharma. Likewise, the fruit of good actions, which we receive as compensation, is Dharma. Any great truth is Dharma. In common usage, the word Dharma refers to the teachings of the path to the end of suffering, and to the result of that path. One of the Three Jewels (Tri-ratna).
Dharmakaya
In Sanskrit, “law body, or truth body.” The ultimate nature of a fully awakened being. The Buddha Body of Reality. The highest of the bodies of a Buddha (see Kaya). The Dharmakaya is the archetypal “form” of an awakened being, that part which straddles the boundary between the unmanifested Absolute and manifested things. In Kabbalah, Dharmakaya corresponds to the sephirah Kether (“crown”).
“Only those who possess the Dharmakaya body, the Law-body, the body which is Substance-Being, can enter into the temple of the Unmanifested Cosmic Mother… Those who enter into the bosom of the Great Reality possess the glorious body of Dharmakaya. Those who possess the body of Dharmakaya submerge themselves within the joy of life, free in its movement.” – Samael Aun Weor, The Gnostic Bible: The Pistis Sophia Unveiled
Dhyan-Choan
(Sanskrit) “Lord of the Light.” A Cosmocreator or Elohim. The Divine Intelligences supervising the cosmos. “A Dhyan Chohan is one who has already abandoned the four bodies of sin, which are the physical, astral, mental and causal bodies. A Dhyan Chohan only acts with his Diamond Soul. He has already liberated himself from Maya (illusion); thus, he lives happily in Nirvana. – Samael Aun Weor, The Revolution of Beelzebub