Rabbi Shmaryahu Gurary ("Rashag") was born in 1898; his father, a wealthy businessman and erudite scholar, was a leading chassid of the fifth Lubavitcher Rebbe, Rabbi Sholom DovBer Schneersohn (1860-1920). In 1921, Rabbi Shmaryahu married Chanah Schneersohn (1899-1991), the oldest daughter of the 6th Lubavitcher Rebbe, Rabbi Yosef Yitzchak Schneersohn (1880-1950). When Rabbi Yosef Yitzchak passed away in 1950, there were those who saw Rabbi Shmaryahu -- an accomplished Chassidic scholar and elder of the Rebbe's two surviving sons-in-law -- as the natural candidate to head the movement; but when the younger son-in-law, Rabbi Menachem Mendel, was chosen as rebbe, Rabbi Shmaryahu became his devoted chassid. Rabbi Shmaryahu served as the executive director of Tomchei Temimim, the world-wide Lubavitch yeshiva system -- a task entrusted to him by his father-in-law -- until his passing on the 6th of Adar I in 1989.
Afterlife is a very rational, natural consequence of the order of things.
After all, nothing is ever lost—even the body only transforms into earth. But nothing is lost.
So too, the person you are is never lost. That person—that soul—only returns to its origin.
If your soul became acutely attached to the material world during its stay here, then it must painfully rip itself away to make the journey back.
But if it was only a traveler, connected to its source all along, then its ride home is heavenly.