kripa
Hinduism Scientific Fact

Science behind touching feet of elders
Whenever we see someone pious or advanced in spirituality, it naturally comes in the heart of an Indian to touch their feet and take their blessings. This custom has been prevalent since centuries and marks the respect which we give to our elders or someone who is senior than is in the matter of understanding the spiritual aspect of the human life.
The science behind touching the feet of elder goes like this:
The nerves that start from our brain spread across all your body. These nerves or wires end in the fingertips of your hand and feet. When you join the fingertips of your hand to those of their opposite feet, a circuit is immediately formed and the energies of two bodies are connected. Your fingers and palms become the ‘receptor’ of energy and the feet of other person become the ‘giver’ of energy.
Usually, the person of whose feet you are touching is either old or pious. When they accept your respect which came from your reduced ego (shraddha) their hearts emit positive thoughts and energy (kripa) which reaches you through their hands and toes.
Their blessing creates an aura which helps us to get to the higher understandings and gives the recipient some share of the piety which the elder has earned.
Sai Baba Tales: The Kalma of Rohila

Once a person called Rohila by caste came to Shirdi, he was tall and well-built. Enamored by the love of Sai baba he began to live in Shirdi. He used to recite the ‘kalma’ of Quran and shout ‘Allahu-Akbar’ at the top of his tone. The other residents of the place were unable to work and sleep and soon the entire neighborhood became uncomfortable. They kept silent for many days but when the things became unbearable they went to Sai baba and requested him to order Rohila to keep quiet.
Sai baba did not pay heed to the request of the people and on the contrary he told the villagers that they should pay more attention to their work and not divert by Rohila’s voice. Baba further told the villagers that the wife of Rohila was of high temperament and she was troubling Rohila and Baba also. Since she doesn’t have the courage to come before the reading of kalma, Rohila recites them throughout the day. Rohila stays calm and happy by reciting it. Since then the villagers sympathized with Rohila and started enjoying his kalma.
In reality Rohila had no wife and Baba was pointing towards the negative and disturbing thoughts. Baba took side of Rohila so that the villagers gain the power of acceptance and tolerate the disturbance created by Rohila. Sai Baba wanted to teach that worship of God should be our prime importance without paying attention to the external negative factors and disturbing thoughts.