The lo saase of vlo sasuru achrei levavchem. …
Do not go after your heart and eyes for pleasures that are forbidden.
Today we are sadly living in the generation of self centered Ness and instant gratification. We do know how to hold ourselves back from running after every desire and pleasure in the world today. And each a person does it is a sin. It doesn’t need to be running after eating treif or a guy etc… to do the forbidden sin of do not go after your desires.