For the source text click/tap here: Chagigah 2
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One who is blind in one of his eyes is exempt from the mitzva of appearance, as it is stated:
יז שָׁלֹשׁ פְּעָמִים, בַּשָּׁנָה--יֵרָאֶה, כָּל-זְכוּרְךָ, אֶל-פְּנֵי, הָאָדֹן יְהוָה.
17 Three times in the year all thy males shall appear before the Lord GOD.
Ex 23:17
“Three occasions in the year all your males will appear [yera’e] before the Lord God”
Since there are no vowels in the text, this can be read as: All your males will see [yireh] the Lord God. This teaches that in the same manner that one comes to see, so he comes to be seen: Just as the usual way to see is with both one’s eyes, so too the obligation to be seen applies only to one who comes with the sight of both his eyes. Therefore, one who is blind in one eye is not obligated in the mitzva of appearance in the Temple.
We explore the notion of being seen by the divine and considering the need for binocular vision. What does recent research reveal and what are the spiritual insights regarding depth perception.