What are the connotations of "Ve'achalta Vesava'ata U'verachta ... "?
Rashi (in B'rachos, 15a) and Ramban #2 (citing B'rachos, 58b): It presents the Mitzvas Asei 1 of Birchas ha'Mazon after 2 eating bread (to bless Hashem for the satiating food and for the good land 3 that He gave you as an everlasting inheritance - Ramban).
Ramban #1: 'When you remember the slavery in Egypt and the affliction of the desert, and when you eat and are satiated in the good land, you will bless Hashem on it.
Seforno: 'To remind you that all the above-mentioned things you received from Hashem'. 4