Jyotiṣa reasons out destiny in terms of Karma phala and its predictions are reflections of karma phalas. Shortest and best definition of Jyotiṣa is ‘Karma-phala-vipāka-kāla-vidhānam’, i.e., set of rules for timing of fruition of past actions. All actions do not bear fruits instantly. Some results may be instantaneous while others may be deep and far reaching, often going beyond a single life. Jyotiṣa studies these obscure fruits of actions which we do not even remember. Destiny or prārabdha is that part of fruits of past actions which has become dominant and has pushed other fruits into background because they do not match with the dominant group of fruits which have resulted into one’s birth in this world.