Destiny, sometimes referred to as fate is a predetermined course of events. It may be conceived as a predetermined future, whether in general or of an individual.
Although often used interchangeably, the words and "destiny" have distinct connotations.
Fortune differs terminologically from destiny and fate in that it has more to do with specific occurrences and outcomes, whereas destiny ultimately revolves around death rather than the events of one’s life. In Hellenistic civilization, the chaotic and unforeseeable turns of chance gave increasing prominence to a previously less notable goddess, Tyche (literally "Luck"), who embodied the good fortune of a city and all whose lives depended on its security and prosperity, two good qualities of life that appeared to be out of human reach. The Roman image of Fortuna, with the wheel she blindly turned, was retained by Christian writers, revived strongly in the Renaissance and survives in some forms today.
Philosophy on the concepts of destiny and fate has existed since the Hellenistic period with groups such as the Stoics and the Epicureans.
The Stoics believed that human decisions and actions ultimately went according to a divine plan devised by a god. They claimed that although humans theoretically have free will, their souls and the circumstances under which they live are all part of the universal network of fate.
The Epicureans challenged the Stoic beliefs by denying the existence of this divine fate. They believed that men’s actions were voluntary so long as they were rational.
In daily language, "destiny" and "fate" are synonymous, but with regard to 19th century philosophy, the words gained inherently different meanings.
For Arthur Schopenhauer, destiny was just a manifestation of the Will to Live, which can be at the same time living fate and choice of overrunning fate, by means of the Art, of the Morality and of the Ascesis.
For Nietzsche, destiny keeps the form of Amor fati (Love of Fate) through the important element of Nietzsche's philosophy, the "will to power" (der Wille zur Macht), the basis of human behavior, influenced by the Will to Live of Schopenhauer. But this concept may have even other senses, although he, in various places, saw the will to power as a strong element for adaptation or survival in a better way. Nietzsche eventually transformed the idea of matter as centers of force into matter as centers of will to power as mankind’s destiny to face with amor fati. The expression Amor fati is used repeatedly by Nietzsche as acceptation-choice of the fate, but in such way it becomes even another thing, precisely a "choice" destiny.