The attic (post edit)

[Brownlie]

The first thing I would do with this poem is rename it The Attic so the reader knows what you're describing

Dust filled bars of light cut through one another as their paths intersect.
Smells of mildew, and mothballs coat the suffocating, thick, and stagnant air. - mildew and mothballs are your strongest words here. I would consider reducing the amount of adjectives you use.
Memories lay dormant in the dark, forgotten memories meant to be remembered. -- Memories is a bit vague perhaps you could refer to some old pictures or something.
Where unneeded wants go to live out their existence... - This is sort of abstract but the sentiment is interesting

-The attic