All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
We do not know what does this mean but if what you mentioned is true and not just an imagination, then Allaah Who is the only true God, creates whatever He wills and He may make in some of his creation some extraordinary things to be evidence of His Great Might and His Oneness. So, what you mentioned might mean this.
Indeed, there is nothing in the universe except that it contains clear evidence of the Greatness of Allaah and His Might and His amazing creation.
Finally, you should be careful not to take advantage of what is written on your finger and leave what Allaah ordained you to do or commit what He has prohibited.
Allaah Knows best.