L'ambroisie du soleil ou "La pierre héroïque" is a French-language poetic work by Pyrazel, first published in 1996 by Ramuel. The title evokes mythic and alchemical imagery—"ambrosia of the sun" and "heroic stone"—suggesting themes of transformation, spiritual quest, and symbolic resonance. At 50 pages, it functions as a substantial chapbook or short collection, likely exploring metaphysical or esoteric motifs through lyrical expression. The work appears to align with late 20th-century French poetic traditions that blend mysticism with literary form, though specific biographical or critical context about the author remains scarce in widely available sources.