The LORD God therefore banished the man from the garden of Eden and stationed the cherubim and the fiery revolving sword, to guard the way to the tree of life. (Gen 3:9-24)
Jesus summoned the disciples and said, "My heart is moved with pity for the crowd who have nothing to eat. (Mk 8:1-10)
https://bible.usccb.org/bible/readings/021123.cfm
Guarding the way to the tree of life . . . but, now the way to the tree of life has been thrown open for everyone, and Jesus himself gives us the Bread of Life for all to eat and be satisfied. The message of Lourdes is that God is for the sick and the small.