Ink Blot Vectors too complex
So recently I had an idea to download a bunch of different ink blot vector files and use them as clipping masks against a nebulous starry sky. Here is an example of the vectors I downloaded. These are Ai files that I just exported as a JPEG so anyone who wanted to know could see. Someone vectorized these images, and so there are thousands of points and lines making up just one image. I understand that.

But here is the question and issue. What is the purpose of creating an ink blot vector to use as a clipping mask, all just to be told that the path is too complex? I MUST be doing something wrong, because I KNOW I am not breaking new creative ground here. I have seen this done in graphics all over the place. I have searched for quite a few hours looking for a solution to this issue, but either the answer is incredibly complex with not much detail in the explanation, or the person doing the answering doesn't quite understand the question.
So my question, plain and simple, is how can I make one of these ink splatters a usable clipping mask (in its entirety)?
THANKS IN ADVANCE!
