Likutei Sichos Vol 28 – Naso 3, Part 1 – Rabbi Chaim Wolosow
https://www.torahrecordings.com/likutei-sichos/028/005_003 לקוטי שיחות חלק כח - נשא ג Likutei Sichos Vol. 28 – Naso 3 – The Aron’s Unique Place on the Shoulder Why did the Aron specifically have to be carried on the shoulder? The Rebbe explores the Rambam’s view that the Aron’s place during travel was specifically upon the shoulders of the carriers. Through Nigleh and Chassidus, the sicha explains the unique holiness of the Aron and the Luchos within it.