Attraction Detraction

What does it mean to say 
I didn't mean it 
When mean meant want 
And it was so many more than two letters 
That your bookshelves fell ashamed 
To a floor that could easily support them 
While your past self 
(What does memory mean)
Had something else to say than what you wrote 
About a house you built after the image appeared 
Natural, they say, nurture cleared