Many a true word is spoken in verse.

"For oft, when on my couch I lie
In vacant or in pensive mood,
They flash upon that inward eye
Which is the bliss of solitude;
And then my heart with pleasure fills,
And dances with the daffodils".

And maybe Wordsworth knew a thing or two.  Recent research has discovered that a compound derived from daffodils - or a least a South African species of same - may indeed help to beat depression.  So there!