To see acorns in your dream represents intensity and endurance. It suggests the possibility of a relatively trivial ambition developing into something of more significance.
To dream that you are picking acorns from the ground indicates that your efforts will earn you the desired reward.
To dream that you are eating an acorn implies that these efforts will be rewarded somewhere down the road, and your life will seem much more enjoyable and much less complicated.
To dream that you are shaking acorns from a tree symbolizes your power to persuade others, whether positive or negative.