Education, which is as old as humanity, has existed in various personal forms in non-western societies, where an osmotic exchange of wisdom, values and life skills within families, tribes and communities was instrumental in the formation and continuation of diverse wisdom traditions all over the world. A personal system of education, called Gurukula (Sanskrit guru, teacher; kula, family) education, thrived in pre-colonial South Asia for centuries before it was replaced by colonial education. This article discusses the philosophy and science behind Gurukula education, where education was a personal process involving an osmotic exchange of essences between teacher and taught, giving wide scope for the celebration of the natural diversity and variability of human behaviour and personality leading to an education that provides equal opportunity in the real sense--as an equal fit between individuals and their environment(s), giving rise to a practical democracy.