There is a very simple reminder in this verse. When I am called to be holy, I am called to an object / person that enables me to be so. Israel kept the law even in its most unusual aspects, like making tassels on garments, as a means to grow closer to the God Who had claim on them.
There was nothing innately holy about a fringe of cloth or even about avoiding one food or another. Instead, what the Law was meant to do was create an atmosphere of obedience that drew the heart to God as the object of holiness. In the remembering and doing of the requirements, a relationship to God in holiness was developed and pursued.
Sanctification calls us to God. I often focus on what I am saved from. But I am equally saved to a relationship with God. That makes obedience all the more precious and important.