As we see, a treaty must be made before entering ארץ ישראל, both within תורה (represented by תורה שבעל פה), on the map (represented by the fulfillment of מצות), and on the calendar (represented by ראש השנה).

What is this treaty that is a prerequisite to all these experiences?

Connecting the highest, most sublime levels with the practical, tangible, lowest of experiences.

It is specifically in these 'lowly' acts where we find, and connect to, Hashem's Essence!