The sublime level of a Rebbe can benefit a skeptic too:
Once someone came to the Rebbe, the Tzemach Tzedek and complained that he harbors doubts in Hashem. The Tzemach Tzedek asked him, “are you afraid of the king?”
“Have you ever seen the king?”
“So why are you afraid of him?”
“My brother told me that he once saw the king.”
“Do you believe me?”
“If so ... ”
Shemu’os V’Sipurim, Vol. 3, p. 171.
Summary and lesson: The Hebrew word for world is olam, which is etymologically related to the word he’elem, concealment. We live in a world of tremendous spiritual darkness, and this darkness can weaken our faith and devotion to Hashem. In contrast, a Rebbe can “see” G-dliness; thus, by connecting with him, we too can come to “see” G-dliness to a significant extent, thereby strengthening our faith in Hashem, and making Him more of a tangible reality in our daily lives.
The Rebbe has informed us that Moshiach will bring the final redemption very soon. Thus, everyone should prepare themselves to greet him through increasing in study of Torah, concentration in prayer, and performance of Mitzvos. In particular, the Rebbe has called for:
*acts of random loving-kindness to a fellow Jew; *material and spiritual charity; *study and dissemination of Chassidus; *study and dissemination of topics related to Moshiach and the redemption; *earnestly praying for the coming of Moshiach; *and promoting the observance of the Noahide Code amongst non-Jews.