Someone commented on my statement to the Bnei Noah that G-d is everywhere. He pointed out that there is a Chassidic teaching that G-d is, "Wherever you let Him in." So which is it? Is G-d actually everywhere - up, down, all around, - or do I have to do something to let Him be everywhere?
The Zohar teaches "There is no place devoid of G-d."[i] Hashem is Infinite. The infinite by definition is endless, fills and surrounds all. In fact there is nothing else than G-d,[ii] so obviously G-d has to be everywhere.
Then what does that Chassidic teaching mean that G-d is wherever you let Him in? "Letting G-d in," means becoming aware of His Presence… to be conscious that Hashem is right there with you. If you do not "allow Him in" you will live a life unaware that He is actually present, as if He is far away and not really involved with your moment to moment life.
How do we "let Him in"? One simple way is to talk to G-d. Talk to Him when you are walking down the street or when you are sitting in your office. Speak to Him as if you were speaking to your beloved father who is standing just a few inches in front of you. Thank Him for all the good that He has given you. Praise His Greatness… also tell Him what you need. Let the Omnipresent One into your life.