Blood is thicker than water

Sometimes family members drift apart. Sometimes for a very long time.

Joseph had not seen his baby brother Benjamin for years and years. Finally when his half-brothers came to look for food in Egypt he saw a chance to reunite with Benjamin. But that first time he saw him again did not go over so well:
“Then Joseph left suddenly, because his heart was full of tender feelings for his brother. He was about to break down, so he went to his room and cried. After he had washed his face, he came out, and controlling himself, he ordered the meal to be served.”

What is one supposed to feel after such a long time?
What is one supposed to say or do?
Being overwhelmed like Joseph is okay!