Why do we prostrate before parents and elders?

Indians prostrate before their parents, elders, teachers and noble souls by touching their feet. The elder in turn blesses us by placing his or her hand on or over our heads. Prostration is done daily, when we meet elders and particularly on important occasions like the beginning of a new task, birthdays, festivals etc. In certain traditional circles, prostration is accompanied by abhivaadana, which serves to introduce one-self, announce one’s family and social stature.

Man stands on his feet. Touching the feet in prostration is a sign of respect for the age, maturity, nobility and divinity that our elders personify. It symbolizes our recognition of their selfless love for us and the sacrifices they have done for our welfare. It is a way of humbly acknowledging the greatness of another. This tradition reflects the strong family ties, which has been one of India’s enduring strengths.

The good wishes (Sankalpa) and blessings (aashirvaada) of elders are highly valued in India. We prostrate to seek them. Good thoughts create positive vibrations. Good wishes springing from a heart full of love, divinity and nobility have a tremendous strength. When we prostrate with humility and respect, we invoke the good wishes and blessings of elders which flow in the form of positive energy to envelop us. This is why the posture assumed whether it is in the standing or prone position, enables the entire body to receive the energy thus received.
The different forms of showing respect are :

Pratuthana – rising to welcome a person.
Namaskaara – paying homage in the form of namaste (discussed separately in this book).
Upasangrahan – touching the feet of elders or teachers.
Shaashtaanga – prostrating fully with the feet, knees, stomach, chest, forehead and arms touching the ground in front of the elder.
Pratyabivaadana – returning a greeting.

Rules are prescribed in our scriptures as to who should prostrate to whom. Wealth, family name, age, moral strength and spiritual knowledge in ascending order of importance qualified men to receive respect. This is why a king though the ruler of the land, would prostrate before a spiritual master. Epics like the Ramayana and Mahabharata have many stories highlighting this aspect.

Why do we light a lamp?

In almost every Indian home a lamp is lit daily before the altar of the Lord. In some houses it is lit at dawn, in some, twice a day – at dawn and dusk – and in a few it is maintained continuously (akhanda deepa). All auspicious functions commence with the lighting of the lamp, which is often maintained right through the occasion.
Light symbolizes knowledge, and darkness, ignorance. The Lord is the "Knowledge Principle" (chaitanya) who is the source, the enlivener and the illuminator of all knowledge. Hence light is worshiped as the Lord himself.

Knowledge removes ignorance just as light removes darkness. Also knowledge is a lasting inner wealth by which all outer achievement can be accomplished. Hence we light the lamp to bow down to knowledge as the greatest of all forms of wealth

Why not light a bulb or tube light? That too would remove darkness. But the traditional oil lamp has a further spiritual significance. The oil or ghee in the lamp symbolizes our vaasanas or negative tendencies and the wick, the ego. When lit by spiritual knowledge, the vaasanas get slowly exhausted and the ego too finally perishes. The flame of a lamp always burns upwards. Similarly we should acquire such knowledge as to take us towards higher ideals.