Question: What philosophical concept of rebirth is a topic in the film Valley of Flowers?

Context paragraphs:
Unity of opposites: The unity of opposites is the central category of dialectics, said to be related to the notion of non-duality in a deep sense.  It is viewed sometimes as either a metaphysical concept, a philosophical concept or a scientific concept.  It defines a situation in which the existence or identity of a thing (or situation) depends on the co-existence of at least two conditions which are opposite to each other, yet dependent on each other and presupposing each other, within a field of tension.

Minority (philosophy): Minority, and the related concept of "becoming-minor," is a philosophical concept developed by Gilles Deleuze and Félix Guattari in their books "Kafka: Towards a Minor Literature" (1975), "A Thousand Plateaus" (1980), and elsewhere.  In these texts, they criticize the concept of "majority".  For Deleuze and Guattari, "becoming-minoritarian" is primarily an ethical action, one of the becomings one is affected by when avoiding "becoming-fascist".  They argued further that the concept of a "people", when invoked by subordinate groups or those aligned with them, always refers to a minority, whatever its numerical power might be.  This has inspired some political philosophers, such as Paul Patton and William Connolly, to elaborate on the concept of "becoming-minoritarian" in order to apply it to modern democratic thought.

Sophia (wisdom): Sophia (, Greek for "wisdom") is a central idea in Hellenistic philosophy and religion, Platonism, Gnosticism, orthodox Christianity, Esoteric Christianity, and Christian mysticism.  Sophiology is a philosophical concept regarding wisdom, as well as a theological concept regarding the wisdom of the biblical God.

Valley of Flowers (film): Valley of Flowers ("La Vallée des fleurs") Valley of Flowers is a 2006 French-German-Indian Independent Film directed by Indian director Pan Nalin starring Indian actors Milind Soman, Naseeruddin Shah and French actress Mylene Jampanoi in the leading roles.  It is a tale of passion, romance and Reincarnation, set in the Himalayas, and spans two centuries of time, from the early 19th Century to modern times and encompasses diverse geographical settings from the old Tarim Basin's Silk Road in the Himalayas to the modern day metropolis of Tokyo, interwoven with Himalayan and Buddhist mythology and the mystic art of Tantra.  The film has been inspired from Alexandra David-Néel's work ""Magie d'amour et magic noire"".

Book of Nature: The Book of Nature is a religious and philosophical concept originating in the Latin Middle Ages which views nature as a book to be read for knowledge and understanding.  There also was a book written by Conrad of Megenberg in the 14th century with the original German title of "Buch der Natur".  Early theologians believed the Book of Nature was a source of God's revelation to mankind: when read alongside sacred scripture, the "book" of nature and the study of God's creations would lead to a knowledge of God himself.  The concept corresponds to the early Greek philosophical belief that man, as part of a coherent universe, is capable of understanding the design of the natural world through reason.  The concept is frequently deployed by philosophers, theologians, and scholars.

Reincarnation: Reincarnation is the philosophical or religious concept that an aspect of a living being starts a new life in a different physical body or form after each biological death.  It is also called rebirth or transmigration, and is a part of the Saṃsāra doctrine of cyclic existence.  It is a central tenet of all major Indian religions, namely Buddhism, Hinduism, Jainism, and Sikhism.  The idea of reincarnation is found in many ancient cultures, and a belief in rebirth/metempsychosis was held by Greek historic figures, such as Pythagoras, Socrates, and Plato.  It is also a common belief of various ancient and modern religions such as Spiritism, Theosophy, and Eckankar and is found as well in many tribal societies around the world, in places such as Australia, East Asia, Siberia, and South America.

Biofacticity: Biofacticity is a philosophical concept that allows to identify a living object as a so-called biofact, i.e. a semi-natural living entitiy in which has been biotechnically interfered during its life-span, e.g. transgenic plants or cloned organisms.  Biofacticity is an epistemological and ontological term that reflects upon the anthropological term of hybridity.  The latter deals with the self-definition of subjects rather than objects.  In philosophy, sociology and the arts, a biofact stands in close relation to the anthropological concept of the human being a composite of nature and technology.  Biofact was introduced to philosophy as a neologism in 2001 by the German philosopher Nicole C. Karafyllis and fuses the words artifact and the prefix "bio".  One of Karafyllis' thesis is that a technical change in living objects, i.e. an increase in biofacticity, will shift the anthropological concept of hybridity towards a technological self-definition of the human.

Property (philosophy): In philosophy, mathematics, and logic, a property is a characteristic of an object; a red object is said to have the property of redness.  The property may be considered a form of object in its own right, able to possess other properties.  A property however differs from individual objects in that it may be instantiated, and often in more than one thing.  It differs from the logical/mathematical concept of class by not having any concept of extensionality, and from the philosophical concept of class in that a property is considered to be distinct from the objects which possess it.  Understanding how different individual entities (or particulars) can in some sense have some of the same properties is the basis of the problem of universals.  The terms attribute and quality have similar meanings.

Ressentiment (Scheler): Max Scheler (1874–1928) was both the most respected and neglected of the major early 20th century German Continental philosophers in the phenomenological tradition.  His observations and insights concerning "a special form of human hate" and related social and psychological phenomenon furnished a descriptive basis for his philosophical concept of "Ressentiment".  As a widely recognized convention, the French spelling of this term has been retained in philosophical circles so as to preserve a broad sense of discursive meaning and application.  Scheler died unexpectedly of a heart attack in 1928 leaving a vast body of unfinished works.  Extrapolations from his thoughts have always since piqued interest and discussion on a variety of topics.  His works were on the Nazi book burn list.

Sophiology: Sophiology (from Greek Σοφία "sophia", wisdom) is a philosophical concept regarding wisdom, as well as a theological concept regarding the wisdom of God.  Sophiology has roots in Hellenistic tradition and Platonism.  Sophia had a major role in almost every sect of Gnostic Christianity.

Supporting paragraphs: Valley of Flowers (film) Reincarnation
Answer: Reincarnation