You probably know that in this week's parsha there is verse that talks about Hashem's presence in our world: 'וְאוּלָם חַי־אָנִי וְיִמָּלֵא כְבוֹד־ה אֶת־כָּל־הָאָרֶץ
But did you know that Mishna Berura speaks about it in the 1st siman?! Commenting on the Rama's words in the 1st siman of the Shulchan Aruch, the Mishna Berura writes:
דהיינו שיצייר בנפשו תמיד איך שהוא עומד לפני השם יתברך, כי הקב"ה מלא כל הארץ כבודו.
"One should always picture in his mind how he is standing in front of HaShem Yisborach, because HaKadosh Boruch Hu's glory fills the entire world." (Mishna Berura 1:4)