It is another what?

Taking it,
Leaving it.
The difference is the ‘with’,
Just like what they call pith.

For the frith,
It's from the filth.

And the frith,
It is to be for the zenith.

Though life got its smith,
So it is about all to admit.

Taking it,
Leaving it.

So it is another what?
With so many fits.

Where is the difference between permit,
Is to submit.

And to commit,
Is to transit.

While during this time we don't omit,
And at the same time emit.

Because credit is profit,
And the benefits are fit.

So let us work with the spirit,
To balance the habit.

And not quit to hit,
So not to split but to edit,
When it comes to a visit,
Whatever it is,
It is another what?