Do u know why we touch elder's feet to get their blessings?????

There is an esoteric reason behind this.The extra energies of a person flow to the earth through feet... but touching the feet we get those energies.Also when elders bless by keeping their hands on our head.. the blessing energies from their agya chakra flow throw their palm chakras to our head..thus balancing our energies and giving us a boost of energies.In olden times, when people were purer at heart... this small gesture would save people from big problems... even now it works, although at lower strengths.