A glowing, ethereal rock formation with intricate blue and purple energy patterns, set against a dark, starry sky.

In the heart of an ancient, crumbling temple, a mesmerizing portal to another dimension beckons. The centerpiece is a colossal, jagged rock formation, glowing with an ethereal blue light that crackles and dances like a living entity. This luminous crystal, seemingly carved by the hands of a celestial being, radiates a powerful aura of mysticism and otherworldly energy. The rock's surface is a tapestry of intricate, branching lines that resemble veins of lightning, pulsating with vibrant blue and purple hues. These lines converge at the apex of the formation, creating a radiant, almost sacred glow that illuminates the surrounding area. The light spills over the edges, casting a soft, mystical glow on the ancient stone pillars and the scattered debris of the temple floor, which are tinged with shades of blue and purple. The atmosphere is one of awe and wonder, as if the very fabric of reality is being stretched and bent by the power emanating from this crystal. The scene is a perfect blend of ancient architecture and cosmic wonder, inviting viewers to imagine the secrets and stories that lie beyond the portal. This image is a testament to the power of imagination and the beauty of the unknown.