What does the phrase "into your minds?"

What does the phrase

Very often, in trying to reach the person we use the phrase "into your minds." But what in fact it means and where it came from?

It turns out that this very popular expression has no relation to the nose. Just imagine, if in fact someone will come up to cut your nose! Even with such a thought is neposebe. But in the old days, the word "nose" is meant not only the respiratory system but also memorable dosochki in which people did notch or notches they say, not to forget about the upcoming events, we have to have great value. So the phrase "your minds" and lives to this day, but its real significance for many has lost its meaning.