Chasidut zu Tehillim 84:11

In Maor vaShemesh, Parshat Shemot, it says that this [sanctification] was acquired by traveling to [be under] the shade⁴⁸⁷See Psalms 84:11. of the rebbe. He says that “the essence of all avodah is to understand that there is a God, Who rules and guides all the worlds with individualized providence, and that there is no place devoid of Him. However, this requires great effort. To truly understand this, one must meditate alone and examine oneself in all matters, to oversee oneself in each and every movement; and one’s heart must be aflame like a burning fire in enthusiasm and yearning for the Creator. Through this he may come to truly know of His divinity. This is the essence of everything...and this is the essence of travel to the rebbe, to stand in the generation’s tzaddik’s shade in order to come through this to know that He is the essence and root of all worlds.”