Self-denial is when you choose to not do something that you would really like to do. It's like when you see a yummy chocolate cake in front of you, but you decide not to eat it because you know it's not good for you. Or when you want to play with your toys, but you know you have to finish your homework first.
Sometimes, we have to say no to ourselves because it's the right thing to do. It can be hard to resist temptation or what we want right now, but self-denial helps us to make good choices for our health, happiness, and future. It's a way to practice self-control and discipline.
It's important to remember that self-denial doesn't mean we can never enjoy things or have fun. We just have to make sure we do it in moderation and with consideration for our goals and responsibilities.