How Are You With The Mitzva Of Fearing Your Parents?

I remember when I was in Holshitz with the Belzer Rebbe, R' Yosochor Dov. I observed how his son Rebbe Aharon would have tremendous awe and fear of his father and his limbs would shake when he mentioned him. He fulfilled the mitzva of fearing your father to the fullest degree.

[The Klausenberger Rebbe ztz"l, Chumash Rashi Shiur Parshas Naso 1979]