Tanya for the 14th, 15th and 16th of Nissan י''ד, ט''ו, ט''ז ניס‪ן‬ Daily Tanya

Even if one loves G-d but lacks a fear of Him, his spiritual labors will not be of the kind that the Torah calls avodah, divine service. And should he fail in his attempts at awakening a fear of G-d in his heart, he should at least arouse a feeling of fear and awe in his mind.
But what of one who finds it impossible to arouse even a feeling of intellectual awe of G-d? The Alter Rebbe will now go on to say that since this individual, too, meditates upon the abovementioned concepts, and, furthermore, his intent during the study of Torah and the performance of mitzvot is to serve G-d, these activities are therefore also deemed to constitute a completely valid form of service.
A Jew’s divine service must embrace both that of a son who serves his father out of love and that of a servant who serves his master out of fear and awe.
A Jew’s spiritual service also includes the goal of becoming one with all the Jewish people. For this reason, his intentions should not be limited to having his own soul cleave to G-d but also that the source of his soul and the source of all the souls of Israel cleave to Him.
By doing so, the individual brings about the union (yichud) of the higher and lower levels of G-dliness known respectively as Kudsha Brich Hu (“the Holy One, blessed be He”) and His Shechinah (“the Divine Presence”), for the former is the source of Torah and mitzvot, and the latter is the source of all Jewish souls.