The mitzvah of tzitzis contains within it to recall the event of the encounter and standing at Mount Sinai

The first two commandments, "I am the Hashem" and "You shall have no other gods," were heard directly from the mouth of the A-lmighty. But we not only heard His voice, we saw it, as it says: “And all the people saw the voices” (Shemos 20:15). Part of our obligation in the mitzvah of tzitzis, beyond remembering the mitzvos, is the command: “And you shall see it.” The Ramban explains that this refers to contemplating the Shechinah through gazing at the strand of techeles. Through contemplating the tzitzis and its meaning, we experience an encounter with the revelation of the Shechinah similar to that which occurred at Mount Sinai.