A Jew chooses to serve Hashem because of his/her soul connection to Hashem but he/she is wise and comes to that conclusion logically. ביום עשתי עשר תשל״א

The purpose of man in this world is to elevate himself to experience the connection to Hashem as in the hidden worlds. הפך ים ליבשה תשכ״ז

There is a lot more to the question than why do we do these Mitzvos on the night of Pesach. כי ישאלך בנך תשל״ח

There are 2 steps in the process of the connection Chassan and Kallah. An external connection and an internal connection. לכה דודי תשי״ד

How to explain the evil inclination that doing a sin is not worthwhile. מכתב יו״ד כסלו תשי״ד

The Godly soul entering the animal soul is a state of exile. Our mission in this world is to exit this exile. דרך מצותיך מצות השבתת חמץ ואכילת מצה

Matzah gives us a new level of faith in Hashem, how He is totally above and beyond creation. Just like a toddler learns to call to his father and mother. דרך מצותיך מצות השבתת חמץ ואכילת מצה

The Jewish people are commanded to believe in one God. The Gentiles may believe the Hashem is God of all gods. באתי לגני תשי״ג

The ritual of the Parah Adumah was a combination of fire and water. Representing the yearning of the soul as the fulfillment of the mission in this world. Teshuva even for Tzadikim. משיחת פרשת פרה תשמ״ט

The Rebbe is a continuation of Moshe Rabeinu. Just like Moshe Rabeinu is eternal because his essence is Torah. The same is true about the Rebbe. ליקוטי שיחות חלק כו פרשת שמות