In his book, Gates of Intentions, the ARI explains the meaning of all the spiritual actions of Passover and their reflections in material customs. The commandments (Mitzvot) refer to the correction of the 613 egoistic desires (of the soul) to altruistic ones with the help of the Upper Light (the Torah). Many are familiar with their reflections or corporeal copies in the customs or traditions (Minhagim) of the holiday.
Many follow these traditions because they are willing to carry out corporeal actions (customs) under the condition that they will help them achieve the results, the execution of corporeal actions (commandments). This is the only reason these traditions are followed.
The more we ask ourselves about the goal and the meaning of every material action (tradition), the more it will help us connect more tightly to their spiritual roots. In this manner, we will learn about the Upper World from the lower world. It is only its connection to the root that gives a custom importance and the right of existence.