Next time you sneeze, think of this: sneezing in medieval lit (prior to the 14th century) was a sign that your soul was leaving your body. If you've ever had a sneezing fit, you will understand this. It is not literal or an attempt to be scientific in the modern sense, but to tie human experience to the Divine.
If you shake someone's hands, it is to show that you are not an enemy, and you welcome the stranger into your clan. You would not shake hands with your friends, only strangers.
If you were out of work, you would ask your neighbours to support you until you found new work. You would repay your benefactor by becoming their friend.
Next week, our material is all about friendship and love: and it may shock you!