Dharana

Translates into “choosing a focus and directing our attention there.” The object of focus can be internal, external or abstract. Examples include: internal – cakraexternal – the flame of a candle or abstract – an idea.

"By Dhahran you preserved long life, while other Yogis perished." The long-live one answered: "No they did not perish, but they got tired of the burden of the human body and gave it up at will."

Meditation: Meaning, Properties and Functions of Mind                 Conditions and control of mind are described with links to various how the mind interacts with various systems of our being.

Seeking Samadhi                                                                                                                         Judith Lasater explains how concentrative practices evolve.

Yoga Sutras 3.1-3.3  In depth description of the last three rungs of Yoga.