Outgrow

(« Morpho emerging from its chrysalis » by Thomas Bresson)

That which you can't abide
Embrace as if a friend
Once you two have allied
No thing will make you bend

That which you can't escape
Welcome as a teacher
You will never espouse
More talented lover

That which you won't challenge
Can't ever make you wise
But that which you surpass
In freedom makes you rise

That which you merely change
Comes back in a new guise
But that which you outgrow
Won't again meet your eyes