No, don't GO!

I try to catch it, it disappears like a mirage
So I feel like giving up easily
But my heart keeps crying
I tell you not to go, holding you to stay

But then, it’s just my heart
If I open my eyes again, you will walk away
What if it becomes difficult for me?
Please don’t leave, please don’t leave

Without a break I look back, walking and chasing you
If I get lost along the way, what should I do?