Attention is the cognitive process of selectively concentrating on one aspect of the environment while ignoring other things. Attention has also been referred to as the allocation of processing resources.

Examples include listening carefully to what someone is saying while ignoring other conversations in a room (the cocktail party effect) or listening to a cell phone conversation while driving a car. Attention is one of the most intensely studied topics within psychology and cognitive neuroscience.

In 1890, William James, in his textbook Principles of Psychology, remarked:

Attention remains a major area of investigation within education, psychology and neuroscience. Areas of active investigation involve determining the source of the signals that generate attention, the effects of these signals on the tuning properties of sensory neurons, and the relationship between attention and other cognitive processes like working memory and vigilance. A relatively new body of research is investigating the phenomenon of traumatic brain injuries and their effects on attention.

Jiddu Krishnamurti (May 11, 1895 – February 17, 1986) was an Indian writer and speaker on philosophical and spiritual subjects. His subject matter included: psychological revolution, the nature of the mind, meditation, human relationships, and bringing about positive change in society. He constantly stressed the need for a revolution in the psyche of every human being and emphasized that such revolution cannot be brought about by any external entity, be it religious, political, or social.

Krishnamurti was born into a Telugu Brahmin family in what was then colonial India. In early adolescence, he had a chance encounter with prominent occultist and high-ranking theosophist Charles Webster Leadbeater in the grounds of the Theosophical Society headquarters at Adyar in Madras (now Chennai). He was subsequently raised under the tutelage of Annie Besant and Leadbeater, leaders of the Society at the time, who believed him to be a "vehicle" for an expected World Teacher. As a young man, he disavowed this idea and dissolved the worldwide organization (the Order of the Star) established to support it. He claimed allegiance to no nationality, caste, religion, or philosophy, and spent the rest of his life traveling the world, speaking to large and small groups and individuals. He authored many books, among them The First and Last Freedom, The Only Revolution, and Krishnamurti's Notebook. Many of his talks and discussions have been published. His last public talk was in Madras, India, in January 1986, a month before his death at his home in Ojai, California.