Thank you for teaching me a new word! I've never come across "pellucid" before, or it's at least a word I don't remember reading or using before.
I saw mostly self-reflection in this, and the title referring to your clear sense of self (or at least awareness in how your mind drifts and wanders), even if others don't understand or think you are too much of something. That's always been curious to me, how someone can be "too much", when we all go through heavy things and life isn't always an easy path we can move through. Then, I also saw the contrast, in when you mention "present and gone". Perhaps there are those moments of lucidity that keep you going, keep you dreaming and hoping, even if others question why or wonder the purpose. Sometimes, I think it's okay to wander aimlessly. There's always so much pressure to know our direction and have a set goal when that's not necessarily realistic, or that clear-cut.
The last lines read to me as you declaring your existence, your presence here, and though you may not know where you'll go next or what you path you'll follow, you're going to be you. Not swayed by others.