The wraith inside my soul

Though he was old and wise
What was it?
In front of my eyes
An evil ghost
Perhaps no one knows
Maybe, he was chosen as a host
He eroded the pain
But no one knew
What he could gain?
It forced my heart
To give a thrive
Leaving a question
Was he ever alive?
Slowly, it said
Say farewell
He couldn't reap
Whatever he sowed
Today, I hope he is fine
In his new abode