The awakening soul is fed the whole length of its passage through the self. Manna is the brain sugar, the galactose secreted within, the sweet mind of God that drops into the still head and nourishes a person in meditation. It comes not once but daily, sustaining the traveler until arrival.
The number 40 is the fourfold nature of man, the physical, spiritual, intellectual and emotional sides through which awareness must pass before it settles. Canaan is the ripened state the soul is journeying toward, the inhabited land where the wandering ends. So the long feeding is one truth held steady: the higher mind pours its own substance into a person across every part of the fourfold self, and it does not stop until the crossing is complete.
Manna: the brain sugar galactose, the secretion within that feeds the soul in meditation
40: the fourfold nature of man, the physical, spiritual, intellectual and emotional sides awareness passes through
Canaan: the ripened inner land the soul journeys toward, where the wandering settles into arrival