Every day in Shema, the section of tzitzis is read:
וְהָיָה לָכֶם, לְצִיצִת, וּרְאִיתֶם אֹתוֹ וּזְכַרְתֶּם אֶת-כָּל-מִצְוֹת ה’, וַעֲשִׂיתֶם אֹתָם; וְלֹא-תָתוּרוּ אַחֲרֵי לְבַבְכֶם, וְאַחֲרֵי עֵינֵיכֶם – You will wear these tzitzis. When you see them, you will be reminded of all God’s commands; and you’ll do them – and you won’t stray after your hearts and eyes. (15:39)
Beyond the obvious implication of not dwelling on inappropriate sights, the Sfas Emes notes that this mitzva is mentioned soon after the tragic incident of the spies. The juxtaposition charges us to not make that generations’ mistake – וְלֹא -תָתוּרוּ אַחֲרֵי לְבַבְכֶם, וְאַחֲרֵי עֵינֵיכֶם – where eyes and hearts literally “scout”, leading astray.
The Sfas Emes analyses their error.
What if their worst fears had been confirmed, and they indeed faced a barren land, inhabited by hordes of strong, ruthless, well armed, well trained men? Would Hashem’s assurances and promises have meant less than if they had no knowledge of the matter?
Certainly not. The scouting changed things from their perspective – but God certainly knew what lay ahead. This is שלח לך – for yourselves.
Taking things as they appear is a character flaw that is caused by a deficiency in faith and trust. If they had truly believed and trusted Hashem, the episode could not have taken place. They’d never have sent scouts in the first place. This why the very next following words are לְמַעַן תִּזְכְּרוּ, וַעֲשִׂיתֶם אֶת-כָּל-מִצְוֹתָי – not “remind yourself” so much as “never forget” – by internalisation.
Ttitzis are said to protect a person. Perhaps by indicating that there is so much more than meets the eye – including the wearer!
A part of the tzitzis requirement is to have a thread of techeiles, a shade of blue-violet. Parenthetically, there is a lot of debate about the source of the correct type of techeiles. To illustrate the gravity of the mitzva, one opinion states that tzitzis without techeiles are not tzitzis at all!
Rav Hirsch notes that the spectrum discernible to our eye ends with the blue-violet ray – the same shade as techeiles; but additional magnitudes of light radiate unseen beyond the visible spectrum. Likewise, the blue sky is the end of the earth visible to us. Perhaps then, techeiles is the bridge that leads from the visible, physical sphere into the unseen sphere beyond. This again underlines the spies error.
Man’s goal is not to strive for spirituality to the exclusion of the physical, but rather to use the physical drives as tools for human growth – note how the thread of techeiles on the tzitzis is the thread wound around the white threads to make a cord of tzitzis. This reflects the duty of the Jew to unite and elevate all available forces and tools to God’s service.
The techeiles on tzitzis is the mini uniform reflecting the calling of the Jew – it should be no surprise that it is the standard colour of the Beis HaMikdash and Kohen Gadol’s clothing.
The entire mitzva of tzitzis screams out that the spies could not have been more wrong. It’s not what you look at that matters; but what you see. Through tzitzis, we are entreated to think bigger and become more.