Is aging movement in an unperceived direction?

Im confused. Are you asking about the causes of aging? Or the nature of time?

Biological age is only loosely connected with chronological age (that is, the passage of time). Any number of factors are involved, including health. Health, and therefore age, is mostly determined by the damage one does to their cells and genetics... which is determined by ones lifestyle. Healthier people age more slowly. Poor health is not caused by age; its age that is caused by poor health.

As far as time goes, it is said that entropy increases as time progresses... and the totality of entropy in the universe is how the direction of the passage of time is determined. But in local areas (such as biological structures) entropy can be reversed... this is what is meant when organized things can come from chaos. What causes this to happen in violation of entropy laws is unknown and even mystical.

If you perceive reality as a single four-dimensional structure then there is no real motion or change at all. Just a static state, a solid unchanging object. Different moments in time are simply cross-sections of this 4D object along a particular axis.

I suspect that you should read science fiction. You may enjoy it.

There is nothing about aging that needs such an esoteric attempt to explain it.

Whether you deal with biological or religious views, aging is essential if we wish to have birth.

And birth is essential for evolution to occur.

So in "intelligent design" aging is planned into the system.

And in evolution it is something that had to evolve to keep the population vigorous and help it to survive.