Each day between the beginning of Passover and Shavuot gets counted, 49 days in all, 7 weeks of seven days. That makes the omer period a miniature version of the Shmitta and Yovel (Jubilee) cycle of 7 cycles of seven years. Just as that cycle is one of resetting society’s clock to align ourselves with freedom and with the needs of the land, this cycle too is a chance to align ourselves with the rhythms of spring and the spiritual freedom represented by the Torah. . . .
Psalm 67 is a priestly blessing for all the peoples of the earth to be sustained by the earth’s harvest (yevulah), and it is a petition that all humanity recognize the divine nature (Elohim) illuminating the world. Composed of seven verses, the psalm is often visually depicted as a seven branched menorah. There are 49 words in the entire psalm, and in the Nusaḥ ha-ARI z”l there is one word for each day of the Sefirat haOmer. Similarly, the fifth verse has 49 letters and each letter can be used as a focal point for meditating on the meaning of the day in its week in the journey to Shavuot, the festival of weeks (the culmination of the barley harvest), and the festival of oaths (shevuot) in celebration of receiving the Torah. Many of the themes of Psalm 67 are repeated in the prayer Ana b’Koaḥ, which also has 49 words, and which are also used to focus on the meaning of each day on the cyclical and labyrinthine journey towards Shavuot. . . .