I do not see it as being significantly important
I do see it as being significantly important. Now what do we do?
We have this life for certain to make better for ourselves and others
That’s what spirituality helps us do.
Afterlives are unsure and uncertain, and it seems doubtful the ego survives, and any other notions of spirituality are at best murky, muddled, amd utterly hopelessly confused given our condition as linear-thinking, 3 dimensional apes
I think the American religion has placed waaaay too much emphasis on the afterlife. Jesus certainly didn’t place much emphasis on it. He advocated, instead, fostering right relationship, loving justice, doing mercy, being compassionate, championing equity, feeding the hungry, and lifting the downtrodden, inviting the stranger and including everyone. Those are here-and-now things that advance us as a species.
I do acknowledge such things as a part of our experiences
That’s a start. However, you immediately dismiss it because you can’t immediately understand it. A scientist of the 1920s would have dismissed quantum theory too. Religion is
supposed to provide us space to explore our spiritual dimension. Instead, pop-religion has turned itself into “Bible Jeopardy!” (I’ll take “sin” for $200, Alex.). The one who has the most “correct” answers wins the prize. What a crock!
I am forced to admit have no idea what such things really are (Ive even had a couple "spiritual experiences").
No one does. But I think we have to allow ourselves the space to explore and discover. Otherwise, we’re ignoring a significant part of our humanity — the part that loves, creates, is intuitive, and seeks to find meaning.
I do not see much purpose or point in investing much importance to it
Your limited perspective is just that, and not shared by a plethora of reasonable, thinking people. Our perspective may be just as limited, but we’re unwilling to slam the door shut just because we can’t “see it.”