leaven
"leaven" - n. - a substance due to fermentation which causes bread dough to rise - Webster's Dictionary
"leaven" - n. a substance to make dough rise, esp. yeast; anything that makes a general change, --vt to raise with leaven; to spread through, causing gradual change. [Fr levain--L levamen-- levare, to raise--levis, light. (There is an accent " - " over the "a's" in levamen and levare, unfortunately I do not know how to do this)] - Webster's New Dictionary and Thesaurus
"meal" - is food, or bread
The kingdom of heaven is like unto yeast, which a woman took, and hid in three measures of flour/bread, till the whole was risen??
Jesus is the Bread of Life see John 6:47-51
47. Verily, verily, I say unto you, He that believeth on me hath everlasting life.
48. I am that bread of life.
49. Your fathers did eat manna in the wilderness, and are dead.
50. This is the bread which cometh down from heaven, that a man may eat thereof, and not die.
51. I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.