This leads us to the relevance of this discussion for our present purpose.

这使我们了解了本次讨论与我们当前目的的相关性。

This is difficult to explain, and for our present purposes it is not entirely necessary that you understand the reasons for this pulsing; but even physically, you are " not here" as often as you are.

这很难解释，就我们目前的目的而言，您并不完全有必要了解这种脉动的原因；但即使在身体上，你也经常“不在这里”。