Toward the latter half of the 19th century, two of the greatest chasidic rebbes were also the greatest of friends. As youngsters, R’ Avraham Twersky, zt”l, (Maggid of Trisk), son of R’ Mordechai (Mottel) of Chernobyl, zt”l, and R’ Menachem Mendel Kalish, zt”l, son of R’ Yitzchok of Vorka, zt”l, formed a pact of friendship that was to last a lifetime; indeed, they died just a few months apart. As the two boys grew older and eventually inherited their respective chasidic dynasties, maintaining contact became all the more difficult. R’ Mendel lived in Vorka, Poland, while R’ Avraham lived in Trisk, Ukraine. The distance between the two was a half-day’s wagon ride and it often took weeks for letters to reach one another. R’ Mendel’s personal attendant, a caring young man by the name of Moishele, saw his Rebbe’s distress and offered to travel every week back and forth to deliver correspondence between the two.