Analysis of The Reason Why

I need to find the reason why,
I walk this earth alone.
I need my life to find a purpose,
And a place to call home.
I've searched within and deep inside,
And lost myself again.
I've cried alone amid my shame,
I can't withstand this pain.
What are friends? Where's my family?
Not a soul to love or trust.
It's desolate in this cruel reality,
Feel less than a spec of dust.
I've grown to be so easily forgotten,
Standing in plain sight.
I've strayed away from who I was,
I've lost my inner light.
I need to find the reason why,
Happiness does not exist.
I need to stop getting high,
But this craving will still persist.
If I ran away from here,
I can't promise I'll come back.
I might as well already be gone,
From this life I've become detached.