So, in A Midsummer Night's Dream, Oberon has Puck assist him in creating a potion derived from the "love-in-idleness" flower. The potion, when applied to the eyelids of a sleeping person, will cause that person to fall in love with the first living thing they see upon waking up. The intended plan goes awry; comedy ensues.
Because it's Shakespeare though, these devious mechaniations, aka the text printed on the back of this t-shirt, are phrased in a way that sounds lovely. That's right, Stussy just taught you Shakespeare.