Preheat oven to 350 degrees F
Open the crescent rolls carefully to avoid unrolling or tearing the dough. You'll need to leave it in it's cylindrical shape.
Slice the dough into pieces about 1/4 inch thick (slice as if you were slicing cookie dough so they are circle shaped). Place the slices on a cookie sheet and press the center in to make an indentation for the cream cheese filling.
In a large mixing bowl, mix together the cream cheese, white sugar, lemon juice, vanilla and sour cream. Add a dollop of the mixture to the indentation you made in each circle of dough. If you like fruit with your danish, add a small amount to the indented center of the rolls before the cream cheese mixture.
Bake at 350 degrees F for 15 - 20 minutes.
While the danish are baking, Make a glaze to drizzle over top. Mix together the cream cheese, vanilla, confectioner's sugar and milk and in a small bowl. Use a spoon to drizzle it over the tops of the danish.
After danishes finish cooking, allow them to cool for 10-15 minutes before icing.