Einstein called time a river. It speeds up, slows down, and meanders around the stars. In a fatalistic sense, the river takes us where it wants our lives to go. We can not escape it. We are along for the ride. We are captives of time.
Einstein theorized that time is relative to velocity (and he has been proven correct). The faster one travels, the slower time moves - at least when measured by a stationary observer. But also gravity affects time, it slows time down (gravitational time dilation). Did you know: Time on the moon runs faster because of low gravity. A clock on Jupiter ticks more slowly. The clocks on GPS satellites have to be adjusted for time deviation. Your head, being slightly farther from the earth's gravity, ages more quickly than your feet. By the time you die your head will be a few hundred billionths of a second older than your toes. Time is captivating. We at Poodwaddle are obsessed with it.