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and Sukla-Kṛṣṇa i. e. mixed). The colourless Karma (neither white nor black or Śukla Kṛṣṇa) belongs to Yogins and not of the ordinary human beings. This natural collective Karma represents highest spiritual stage of advancement for a country or for an age. There is a natural opposition in the white and black Karma of a person, so in collective way also there is a similar opposition between cumulative white Karma and cumulative dark Karma. When in a particular age and with reference to a particular karma, the cumulative dark Karma becomes so great that cumulative right Karma of the same country finds itself unable to shine and prosper. Such an occasion comes in the life of a man or a nation from time to time. It is on such occasion that what is known as a Dharmaglāni (alfa) in the Gita or downfall of righteousness and predominance of dark forces take place that the cosmic agency intended for the maintenance of a natural position in the world fails to function. The world forces are incompetent to solve regularly the critical world' position. It is at such moments that extra cosmic power, that is the so-called Divine power, asserts itself and comes down to earth consciousness for the preservation of the world order. This is technically known as descent of God in the form of an Avatara.
It is just clear that Divine Intervention in the form of Avatāra, is sometimes necessary for proper adjustment of Karmic sources on a general level.
FUNCTION OF KARMA, GRADED BIRTH, KARMA AFFECTING BIRTH
It is well known that the Gita teaches and is supported by all other Sastras that the caste or varņa of a particular person is determined by the principle of equitable distribution of guna and Karma i. e. qualities and actions.1
Karma is action and guņa is Sattva, Raja and Tama. According to the distribution of these two fundamental principles, the birth of a human being is determined. In ordinary cases
1. Bhagavad Gītā IV-13 चातुर्वर्ण्य मया सृष्टं गुणकर्मविभागशः।
