Goal setting and present moment living

As all students of A Course In Miracles know, the Course says that the physical world is an illusion.

I don't remember the quote verbatim, and I don't remember where exactly it is in the Course. But there is a place in the Course that speaks about the devastation that comes when one realizes that the world in and of itself offers nothing.

I recently experienced this. I don't want to go into specifics, but for years I'd had a goal in mind, something I wanted to achieve and that I thought once achieved would bring me great happiness. Well, I achieved the goal I'd been seeking for years to achieve. But rather than bring me great happiness, it brought me great disappointment because I came to realize just how illusory my goal was. A somewhat disorienting place to be.

What this teaches me is that, as the Course says, what is most important is living in the present moment. It's quite a transition for me, because I tend to be an incredibly goal oriented person. But the present moment is really all we have, and we can only live in the present moment.