The Torah commands us to put Tzitzis strings of the corners of our clothing. We can suggest that Hashem gave us a Mitzva on our clothing since He wants us to respect our clothing. Chazal say that “clothing” is the respect of a person. A human being is a Tzelem Elokim; his holy body is respected, and his shame is protected by wearing clothes. A human is a miniature world, and he is M'chuyav to say: the entire world was created just for me.
It says: Hashem will gather us for the “four corners of the world” (the phrase: “four corners” is also in davening, before Sh’ma, and in Shmoneh Esrei). Just as the entire world is symbolized by “four corners”, so too, the Beged of “four corners” needs special respect, and must have Tzitzis. And just like clothing is a Shemira (protection) for the dignity and Tz'niyus of a human, so too, the Tzitzis a Shemira from Chet, especially from Arayos. Like the Gemara tells a story how a person refrained from Arayos when he saw his Tzitzis.
Also, just as a house is a protection, so is the Mezuza a Shemira from sin. (Gemara). The Tur at the end of Hilchos Tzitzis brings down the Chazal that whoever is careful with the Mitzva of Tzitzis will be Zoche that 2,800 slaves will serve him; the Goyim will flock to his four corners and hold on to his Tzitzis. We see how much respect is coming to those who respect themselves with Mitzvas Tzitzis.
Tzitzis also symbolizes white purity, and refraining from Ta'ava. (Chazal). Respect is always the opposite of Z'nus, which is low-life Shiflus and lack of self-worth. The Kavod of a princess is her Tz'niyus (concealment). Like Yosef (Middas HaYesod) said to the wife of Potiphar: I am the greatest person around here (self-respect).
And just like Yosef’s self-control caused him to become a Melech (Chazal) so are those who are careful with Tzitzis (which symbolize overcoming Ta'avos) Zoche to being like kings, where thousands of Goyim will serve them in the times of Moshiach (may he come speedily in our times, Amen!). Indeed, the Mitzva of Tzitzis is a symbol of the sanctity of clothing, and Tz'niyus, Kedusha, and respect for a Tzelem Elokim, who isn’t undressed like an animal.
Perhaps this is why the Passuk ends off: “that you cover yourself with”, to show the emphasis of Tz'niyus and “covering” yourself. No wonder Tzitzis is considered a mark of distinction, and the Mishna B’rura says that a person should be proud of his Tzitzis and wear them outside, since they are like a gift from the King. (Hashem).
