In ancient India every subject – academic or spiritual – was considered divine and taught by the Guru in the Gurukula. The custom of not stepping on educational tools, is a frequent reminder of the high position accorded to knowledge in Indian culture. Thus knowledge, a knowledgeable person, learning materials, the source of knowledge and the deity of knowledge, all are considered worshipful.
From an early age, this wisdom fosters in us a deep reverence for books and education. This is also the reason why we worship books, vehicles and instruments once a year on Sarasvati Puja or Ayudha Puja day, dedicated to the Goddess of learning.
Children are also strongly discouraged from touching people with their feet. Even if this happens accidentally, we touch the person and bring the fingers to our eyes as a mark of apology. Even when elders touch a younger person inadvertently with their feet, they immediately apologise.
Man is regarded as the most beautiful, living, breathing temple of the Lord. Therefore, touching another with the feet is akin to disrespecting the divinity within him or her. This calls for an immediate apology, which is offered with reverence and humility. .
Thus, many of our customs are designed to be simple but powerful reminders or pointers of profound philosophical truths. This is one of the factors that has kept Indian culture alive across centuries.