dreamlike stairway leading to a galactic portal in the cosmos

celestial gateway door leading unknown framed open revealing swirling galaxy stars nebulae steps bathed golden light lead doorway background shimmering expanse canvas breathtaking beauty sense wonder mystery potential infinite possibilities suggests passage dimension realm understanding composition balanced harmonious drawing promise adventure dreamlike stairway galactic portal cosmos mesmerizing showcasing glowing cosmic clouds scene universe ethereal fantasy staircase space surreal expansive imagination pathway journey astral starscape radiant heavenly nebula mystical luminescent enchantment dreamscape otherworldly beams heaven exploration peaceful astronomy