Time dilation is a phenomenon predicted by the theory of relativity, which states that time can appear to move at different rates for objects in relative motion. It occurs when an object is moving at speeds close to the speed of light or when it experiences a strong gravitational field.
According to special relativity, as an object approaches the speed of light, time slows down for that object relative to a stationary observer. This means that if you were traveling at speeds close to the speed of light, time would appear to pass more slowly for you compared to someone who is stationary. From your own perspective, it would seem as though time is passing normally, but when you compare your experience to someone else's, it would appear that you are aging more slowly.
However, it's important to note that time dilation does not allow you to travel faster than light (FTL) from your own perspective or any other perspective. The speed of light in a vacuum is an absolute limit according to the theory of relativity, and no object with mass can reach or exceed that speed. Time dilation can affect the perception of time, but it does not change the fundamental limitation imposed by the speed of light.
In summary, time dilation can alter the perception of time for objects in relative motion, but it does not enable FTL travel or allow you to exceed the speed of light from any observer's perspective.