Based on a Naaleh.com shiur by Mrs. Shira Smiles
The Sefas Emes tells us that our entire spiritual year is dependent on the days of Sefirah. Just as our physical sustenance is determined during this wheat harvesting period, so too our spiritual sustenance is set during these weeks. If our lives are dependent on this mitzvah, shouldn’t it involve a lot more than just a minute or so of a short liturgy? Obviously there is more hidden beneath the surface .
The Torah commands us, “Usefartem lachem…,” Why does the verse include the word “lachem“-to you? Wouldn’t “Usefartem“-You shall count, have been enough? “Usefartem” has the root word sefor, to count, but also the root word sapir, sapphire. Our hearts resemble the luchot which were fashioned out of sapphire. The innate sapphire brightness of our soul is dimmed by the darkness of sin. Therefore Hashem tells us, “Usefartem lachem“-Make for yourselves into sapphire. Ignite your soul, remove the grime of sin through the mitzvah of counting Sefirah. Then the innate brilliance of your soul will shine through.
What is the power of sefirah that gives us the ability to make ourselves pure and whole again? If one looks closely, one will find that Shavuot is the only holiday that has a Torah mandated period of preparation. There is something very pivotal embedded in these weeks.