It’s the final movement of Mahler’s fourth symphony, the last in the composer’s folk poetry-inspired “Wunderhorn” series. By this point, the work—performed this Easter afternoon by the Bard College Conservatory Orchestra under Leon Botstein—has already traveled from the blooming, budlike innocence of the sleighbells that open its first movement and through the devilish “death dance” scherzo and funereal procession of, respectively, its second and third. As the music bucolicly reawakens and starts to swell to peaks of Earth-shattering triumphance, matching the glorious weather outside the shimmering Fisher Center, soprano Dawn Upshaw is about to make her own ascension.

Standing center stage, resplendent in a full-length red silk coat, Upshaw begins to sing “Das himmlische Leben,” the song from which the whole of the symphony springs. Eyes closed, blissfully lost in the strings, tympani, and woodwinds behind her, she delivers, in the original German, the piece’s idyllic, childlike impressions of a saintly feast. As her voice rises to soar above the crescendo, it fills the cavernous hall and pierces the towering ceiling, on its way to heaven itself. Language barrier be damned, the sheer delight of the song’s fairytale imagery—as well as the pleasure and privilege the singer derives from performing it—is unmistakable, intoxicating, liberating. As per her reputation, Upshaw is clearly feeling the text, connecting with the composer’s intended emotion and allowing it to flow through her singularly divine instrument. At the close of the recital the audience is on its feet, its applause thunderous. Repeated shouts of “Bravo!” puncture the mounting din. When the diva returns with the student orchestra for a bow, a colorful bouquet is placed in her outstretched arms. She’s beaming. Spring is clearly in the air, and one can’t help but feel Upshaw helped put it there.

“The orchestra did such a beautiful job,” Upshaw says the following evening, characteristically downplaying her own role and gushing with pride in the students. “To stand with young people playing a masterpiece like that for the first time on stage is just extraordinary, to experience the joy they’re feeling. But I do love singing Mahler’s fourth. I also recently performed it with David Zinman and the [Zurich-based] Tonehalle Orchestra, and I did it a lot at the beginning of my career.”

And for a singer’s career, Upshaw’s is as breathtaking as they come—so take a deep one: Since her professional start with the Metropolitan Opera in 1984 she’s made nearly 300 appearances with the company; has performed in innumerable acclaimed recitals and in leading opera roles across Europe and the US, including several at Carnegie Hall; and collaborated with the Kronos Quartet, Met director James Levine, conductor Sir Simon Rattle, conductor-composer Esa-Pekka Salonen, and pianist Richard Goode. She’s had numerous operas created specifically for her, such as John Harbison’s “The Great Gatsby,” John Adams’s “El Niño,” and Kaija Saariaho’s Grawmeyer Award-winning “La Passion de Simone.” She was a guest of President Bill Clinton and Mrs. Clinton on NBC’s “Christmas at the White House” and was named a Fellow of the American Academy of Arts and Sciences in 2008. Known for her championing of works by contemporary composers like Luciano Berio, George Crumb, Osvaldo Golijov, and others, she is also a four-time Grammy winner who has appeared on over 50 recordings, including Henryk Gorecki’s million-selling Symphony of Sorrowful Songs (1993, Nonesuch Records).