"This is Our G-d"
Perceptions by the Senses. Anything perceived can be defined by us, whether perceived by the senses or by the intellect.

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Perceptions by the Senses
Anything perceived can be defined (named) by us, whether it is perceived by the senses or by the intellect.
For example, the request to pass the salt can be replaced by the request to pass this when accompanied by pointing to the salt.
The first "this" we seek is one not perceived by the senses. We point with a finger and ask if "this" is at the fingertip. On the practical level of pointing, is the "this" not perceived by the senses at the fingertip or not?! To illustrate, you are invited to point with your finger and repeat the question practically.
If we answer yes, it is a reasonable answer because there is air, for example, which is not perceived by the senses but is understood by the intellect as existing at the fingertip, even if the senses do not detect it.
The previous "yes" answer moves us to the next question, but the answer "no" does not advance us to the final stage.
Again, practically, we will point with an actual finger wherever we want, and ask if at the fingertip there is a "this" not perceived by the intellect?
If we answer yes, we believe that at the fingertip there is something not perceived by the intellect, meaning there is something here greater than human intellect and not perceived by it.
For the answer "no" to the last question, meaning there is nothing beyond our intellect, we will again challenge with a question applicable to "no" for the first sensory question.
The answer to that can, as mentioned, be either yes or no.
If we answer no, the implication is that what exists at the fingertip in terms of what is not, does not exist there. In other words, we are pointing to the non-existent.
Because the "this" and the pointing indicate the non-existent.
Meaning it is at the fingertip practically, because we are pointing to the non-existent.
And point with a finger and ask if this non-existent is at the fingertip - the answer will be: it is not here because everything the finger points to is perceived by the senses and intellect, and what does not exist cannot be perceived by our consciousness. But since the definition of "this" is non-existent and the answer to whether the non-existent is at the fingertip is - it does not exist at the fingertip practically, it matches its definition and therefore exists practically. In other words, the non-existent exists as non-existent.
And the Rebbe of Lubavitch z"l writes: “And all this practically and openly shows with his finger and says "this" so there is no need to point (to others) because everyone sees openly that today Hashem has appeared to you. (Torat Menachem, Volume 3, page 205)"