Merry Christmas!

Maybe you were subconsciously associating your palm, finger, and the phasing with something other than those things in a way that you would not expect the combination to work out.

I assume you were using your forefinger to pass through your palm. Your forefinger can represent judgment. Your open palm can represent generosity.

Today is Christmas, the season of giving. Perhaps in the dream you could not pass judgment, or make a decision concerning your generosity.

That was just a wild guess. These things could mean other things as well. But the mind has the ability to associate things in the dream with other things, which in turn can affect your subconscious expectations.