Ashiyana's beauty cannot be exaggerated. The teaching was consistently of high quality across the entire team of teachers that changed from day to day and lesson to lesson. The change meant that one had the benefit of exposure to different styles of yoga and teaching and one got to learn much more.
The Gurukula System and Yoga Teacher Trainings
In ancient times, as mentioned in the Upanishads, the teachings of Yoga were passed on by the 'Guru' - 'Gu' (darkness) 'Ru' (remover), in his or her home, to the 'Kula' (extended family of students), over a period of 12 years.