Chapter One - Mishna 5
Yose ben Yochanan, the Av Beis Din, of Jerusalem used to say,
Let your home be open wide,
Yosef ben Yochanan of Jerusalem says: "Your house should be open wide". We know that the tent of Avraham Avinu (our Father) was open on all four sides. Guests could come in from any direction without having to go around. We too should do our best to make guests feel welcome.