What's the Source of All Things?

You should give credit to Hashem for whatever good you have. Even though you have an obligation to thank people for what they have done for you, you must know that no matter who they are, they are only agents of Hashem. That's not easy because people look at the immediate causes that are in front of their eyes. They fail to see the long-range causes. Hashem is the long range cause of all the things that they have. — Ohr Avigdor Shaar Avodas Elokim