Sources

• Spiritual & Religious Teachings and Teachers

Mary Baker Eddy described Christian Science as a return to "primitive Christianity and its lost element of healing". There are key differences between Christian Science theology and that of traditional Christianity. Check it out here.

• History & Tradition

The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The term refers especially to the Eastern Mediterranean campaigns in the period between 1096 and 1271 that had the objective of recovering the Holy Land from Islamic rule.

• Information Sources

American Psychological Association (APA) Dictionary with more than 25,000 authoritative entries across 90 sub-fields of psychology.

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• Philosophy

Meditations on First Philosophy, in which the existence of God and the immortality of the soul are demonstrated 

(Latin: Meditationes de Prima Philosophia, in qua Dei existentia et animæ immortalitas demonstratur) is a philosophical treatise by René Descartes first published in Latin in 1641.

• Information Sources

{stwpreview url="https://dictionary.cambridge.org/dictionary"}

• Philosophy

Phenomenology is the study of structures of consciousness as experienced from the first-person point of view. The central structure of an experience is its intentionality, its being directed toward something, as it is an experience of or about some object. An experience is directed toward an object by virtue of its content or meaning (which represents the object) together with appropriate enabling conditions.

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• Information Sources

Holy Books is the largest collection of high-quality sacred texts, holy books, spiritual texts as PDF ebooks you will find on the Internet. All books are free to download. For example, you can download the Bible, download the Quaran, the Vedas and thousands of ancient texts on religion and spiritual practice.

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• Information Sources

Useful for checking out general information

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• Self Knowledge

A brief summary of some of Socrates key sayings and teaching.

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• Spiritual & Religious Teachings and Teachers

Lao Zu is traditionally regarded as the author of The Tao Te Ching, often called simply Laozi after its reputed author, describes the Dao (or Tao) as the source and ideal of all existence: it is unseen, but not transcendent, immensely powerful yet supremely humble, being the root of all things.

• Information Sources

In physics, the observer effect is the theory that the mere observation of a phenomenon inevitably changes that phenomenon. This is often the result of instruments that, by necessity, alter the state of what they measure in some manner. A common example is checking the pressure in an automobile tire; this is difficult to do without letting out some of the air, thus changing the pressure. Similarly, it is not possible to see any object without light hitting the object, and causing it to reflect that light. While the effects of observation are often negligible, the object still experiences a change. This effect can be found in many domains of physics, but can usually be reduced to insignificance by using different instruments or observation techniques.

• Philosophy

Philosophy of mind is a branch of philosophy that studies the ontology and nature of the mind and its relationship with the body. The mind–body problem is a paradigm issue in philosophy of mind, although other issues are addressed, such as the hard problem of consciousness, and the nature of particular mental states. Aspects of the mind that are studied include mental events, mental functions, mental properties, consciousness, the ontology of the mind, the nature of thought, and the relationship of the mind to the body.

Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics describing the properties of nature.

Classical physics, the description of physics that existed before the formulation of the theory of relativity and of quantum mechanics, describes many aspects of nature at ordinary (macroscopic) scale. Quantum mechanics explains the aspects of nature at ordinary (macroscopic) scales but extends this description to the small – atomic and subatomic – scales. Most theories in classical physics can be derived from quantum mechanics as an approximation valid at large (macroscopic) scale. Quantum mechanics differs from classical physics in that energy, momentum, angular momentum, and other quantities of a bound system are restricted to discrete values (quantisation), objects have characteristics of both particles and waves (wave-particle duality), and there are limits to how accurately the value of a physical quantity can be predicted prior to its measurement, given a complete set of initial conditions (the uncertainty principle)

• Spiritual & Religious Teachings and Teachers

Reading this, confirms that "Sin" has changed it's meaning depending on time and the religious group using the definition. So strong a concept and so useless in spiritual progress.

• Spiritual & Religious Teachings and Teachers

As a mystic and ascetic aspect of Islam, it is considered as the part of Islamic teaching that deals with the purification of the inner self. By focusing on the more spiritual aspects of religion, Sufis strive to obtain direct experience of God by making use of "intuitive and emotional faculties" that one must be trained to use.

• Spiritual & Religious Teachings and Teachers

Swami Vivekananda  12 January 1863 – 4 July 1902), born Narendranath Datta , was an Indian Hindu monk, a chief disciple of the 19th-century Indian mystic Ramakrishna.[He was a key figure in the introduction of the Indian philosophies of Vedanta and Yoga to the Western world and is credited with raising interfaith awareness, bringing Hinduism to the status of a major world religion during the late 19th century.

• Philosophy

The Tractatus Logico-Philosophicus (widely abbreviated and cited as TLP) (Latin for Logical Philosophical Treatise or Treatise on Logic and Philosophy) is the only book-length philosophical work by the Austrian philosopher Ludwig Wittgenstein that was published during his lifetime. The project had a broad goal: to identify the relationship between language and reality and to define the limits of science. It is recognised by philosophers as a significant philosophical work of the twentieth century. G. E. Moore originally suggested the work's Latin title as homage to the Tractatus Theologico-Politicus by Baruch Spinoza.