If those lines are already in your palm, than yes. It doesn’t have to be a pentagram.
Sorry, because English isn’t my native language I seem to be incapeable of explaining myself and I also notice I’m sometimes having trouble understanding others.
I have made this picture below to ensure that I did my best to explain what I meant. I have used the lines in the palm on the first picture to make a ‘sigil’ of the word SEND in the second picture.
orange S yellow E green N red D
Edit to add:
This than is a personal sigil that is a part of your being since birth
@Yazata Oh right. Thank you I understand better appreciate the details.
Your English written seems good. What is your first language? I love languages