Generate a medieval-inspired ambient meditation track with deep, sustained drones, ethereal synth pads, soft plucked lute melodies, and airy flute passages. The tempo should be slow (60 BPM) with a flowing, hypnotic atmosphere. Include gentle reverberated chimes, occasional frame drum pulses, and Gregorian-style vocal textures for an ancient, spiritual feel. The overall mood should be mystical, serene, and deeply immersive, ideal for meditation or relaxation.