Why meditate? want a truthful answer without spiritual terms?

What I think of meditation is sitting with a good posture and concentrating on breathing and thinking about nothing. How does this help a person with anything? The only plus point that I can think of meditation is that, during the time you meditate, you forget all the distractions around you and become calm and stress free. Why do people talk about enlightenment? I saw [this definition of enlightenment](https://www3.nd.edu/~afreddos/courses/439/what-is-enlightenment.htm) on Google: > Enlightenment is man's emergence from his self-incurred immaturity. (Kant, 1784) Doesn't that imply "Enlightenment" equals "being disciplined, mature and independent"? How does meditation achieve this? Don't we become mature through experience and growth, disciplined through hard work and independent by accepting yourself? Hence why do we meditate? Why do we say things like "enlightenment can be achieved through meditation" when it can be achieved without it?