The education of a student was not limited to ritual and philosophical speculations found in the Vedas and the Upanishads. They extended to many arts and crafts, which had their own, similar rites of passages. Aitareya Brahmana, Agamas and Puranas literature of Hinduism describe these as "Śilpa Śastras". They extend to all practical aspects of culture, such as the sculptor, the potter, the perfumer, the wheelwright, the painter, the weaver, the architect, the dancer, and the musician. Ancient Indian texts assert that the number of the arts is unlimited, but each deploy elements of 64 ‘‘kala’’ (कला, techniques) and 32 ‘‘vidyas’’ (विद्या, fields of knowledge). The training of these began from childhood and included studies about dharma, culture, reading, writing, mathematics, geometry, colors, tools, as well as traditions (trade secrets). The rites of passage during apprentice education varied in the respective guilds.