Shakespeare often used metaphorical writing  eg  a line given to the character mercutio:

True, I talk of dreams,

Which are the children of an idle brain,
Begot of nothing but vain fantasy,
Which is as thin of substance as the air
And more inconstant than the wind, who wooes
Even now the frozen bosom of the north,
And, being anger’d, puffs away from thence,
Turning his face to the dew-dropping south.

The my understanding of the quotation assigned to Mercutio “true I talk of dreams” means that true I talk of dreams or illusions “and more inconstant than the wind, who wooes” but they are very inconstant so he should not be “hooked” on rosalind