vile_Terrier this is something i cant tell you in a few words and this is something i still learn about myself. in short, there is a lot of things aside of meat that you cant eat, but you can also find a lot of products that you can eat. my musician friend was helping me with it today, he is a very knowledgeable man, so he said to me that "by the end of lent you will understand". it is a learning process and it's fun for me to learn about. i will have to try some food i never tried before. because you cant eat salami or cheese with bread, i bought myself some peanut butter. i never tried it before, tomorrow i will see if it tastes good. here's a random picture of things you can and cannot eat:

it still does not explain everything. you need to read the compound of each product to see if it doesnt have any animal products. you need to read carefully, as eggs and milk can be hidden everywhere. i will continue learning about it tomorrow