Rabbi Nachman of Horodenka was a close colleague of the Baal Shem Tov. His son, Rabbi Simcha, married the Baal Shem Tov’s granddaughter, Feiga. Their son, the famed Rabbi Nachman of Breslov, became the founder of Breslov Chassidism. The Baal Shem Tov once asked Rabbi Nachman of Horodenka to deliver a letter to Rabbi Dov Ber of Mezritch (who later became known as the Mezritcher Maggid) in which he attempted to persuade Rabbi Dov Ber to become his disciple. Upon receiving the letter, Rabbi Dov Ber said, “I see an auspicious sign in the student who bears this letter. If Rabbi Nachman of Horodenka is such a holy tzaddik, how much more so is his teacher—the Baal Shem Tov.” Rabbi Dov Ber then agreed to meet with the Baal Shem Tov and later to join the Chassidic movement.
The Rebbe describes the following as a core teaching of the Baal Shem Tov:
Not only are the pirouettes of a leaf as it falls off a tree,
the quivering of a blade of grass in the wind,
and all the details of the world around you
all brought into being, given life and directed every moment from Above—
but beyond that:
Every nuance is an essential component of a grand and G‑dly scheme, the gestalt of all those vital minutiae.
Every moment burns with the pulse of G‑d’s desire.
Meditate on this. And then think:
How much more so the details of my daily life.