The mysterious nature of time

[Confused]

The phrase "time speeds up" can have two meanings. Someone may say it and intend to mean that his Self is moving fast and his surrounding environment is in 'slow motion'. OR, Someone may say it to mean that his Self is standing still while everything he witnesses speeds by.

With respect to that observation of the self, I think as a function of time, its perspective varies widely. For instance, Ra says in 70.12:

In time/space, which is precisely as much of your self as is space/time, all times are simultaneous just as, in your geography, your cities and villages are all functioning, bustling, and alive with entities going about their business at once. So it is in time/space with the self.

I completely fail to understand Ra's analogy there, with respect to the self's perspective of time and bustling cities.