The heart of a young man, when an aged and venerable person cometh to his house (as a guest), soareth aloft. By advancing forward and saluting him, he getteth it back. He that is self-controlled, first offering a seat, and bringing water and causing his guest’s feet to be washed and making the usual enquiries of welcome, should then speak of his own affairs, and taking everything into consideration, offer him food.

In plain words: When an elder comes to a young man's house, the young man feels uneasy until he goes forward and greets him respectfully. A good host offers a seat, brings water to wash the guest's feet, and asks how he is. Only then should the host speak of his own matters and offer food.