Our great-grandfather of blessed memory related about the Baal Shem Tov, may his merit protect us, that his tzitzis had actual life and vitality — such that they were able to sway on their own without any movement of his body. For through the holiness with which he performed the mitzvah, he drew down for them a soul and living spirit. (Divrei Shalom, Parshas Tavo)sefaria.org.il
"Send for yourself men."
When we perform a mitzvah, we create angels, and therefore the mitzvah must be performed with pure thought while subduing our base traits before H'shem.
(It seems the Rebbe is referring to the word "men" in the verse. "Sending men" alludes to sending angels, which are created from the mitzvos; both are messengers sent out to fulfill a purpose.)
Therefore, "send for yourself" — send up those mitzvos back to your root source,* "To survey the land of Canaan", by "surveying" your own material physicality, called artziyus, to subdue it. |"To subdue it" להכניען shares the same root with the name of the land Canaan. This is easy to comprehend. *
MiPeninei Naom Elimelech 227