What ideas / feelings does Sor Juana try to express in her poem? What is the tone of the poem?

Sor Juana's enduring importance and literary success are partly attributable to her mastery of the full range of poetic forms and themes of the Spanish Golden Age, and her writings display inventiveness, wit and a wide range of knowledge. Juana employed all of the poetic models of her day, including sonnets and romances, and she drew on wide-ranging—secular and nonsecular—sources. Unlimited by genre, she also wrote dramatic, comedic and scholarly works—especially unusual for a nun.

Sor Juana's most important plays include brave and clever women, and her famous poem, "Hombres necios" ("Foolish Men"), accuses men of behaving illogically by criticizing women. Her most significant poem, "Primero sueño" ("First Dream"), published in 1692, is at once personal and universal, recounting the soul's quest for knowledge.