In his 1987 painting “While There Is Still Time Let’s Go Out and Feel Everything,” Paul Thek scrawls those words in looping light blue script over a darker blue punctuated by wavy lines. Because the words and the marks share an improvisational, finger-painted quality, they blend together and into the only slightly darker background. From a distance, the work looks like an abstract color-field of molted blue. Poet Cate Peebles uses the title of Thek’s painting as the epigraph to her debut collection, Thicket. It serves as a fitting introduction. Like the painting, these capacious poems are permeable, full of images of one self dissolving into another while immersing readers in a vibrant, sensual world.