What Was Not Illusion

I once thought I had many great things
Then came a dream: none of it was to be mine
I knew not how this was to be only it was to be
I saw no reason why it was to be only it was to be

Then time took all the things I thought great
And what I saw in them was sadness
I am glad to see sadness leave; I did not know sadness
As I did not know happiness

I then saw a future that I could believe
To understand that I would understand
A vision from my past of a wish from my future
My ignorance trusted my wisdom
I wished I could be happier in the past
      I see myself happy in the future
I become happier through each present

Once I thought I had many great things
Then came the dream: none of it was to be mine
I walked away from everything I had and turned to look
Little remained; only what was not illusion

Time took great things, but nothing that was mine
I know not how or why only what is mine now:
      What was not illusion