There is no doubt in my mind that the time the Rebbe spent at the resting place of his father-in-law, the sixth Chabad Rebbe, Rabbi Yosef Yitzchak Schneersohn, of righteous memory, was extremely precious to him. The Rebbe always prepared for things that were important. The time the Rebbe spent traveling to the resting place – known as the ohel – was used for preparation, I am sure.
While I was not the designated driver to drive the Rebbe to the ohel, there were times when I filled in and brought the Rebbe there. On one of these occasions, while we were driving, the Rebbe turned to me with a very worried face and said: "There is a doctor in Washington that is accused of a horrendous deed, and he is now in jail. It is doubtful whether he did it, and even if he did do it, he has already done enough time."
The Rebbe suggested that I call a certain rabbi who could use his influence to have the doctor transferred to his own institution, where he could be rehabilitated. The Rebbe asked me to immediately call this rabbi and tell him that the Rebbe is entering the ohel, and that he requests a progress report by the time he emerges.