Pastels and portals. Color and cosmic waves. It’s 2023 and I think Nicolas Party is a bit of a time-traveler. Spirituality in his works, which seem to be be in ode to a religious set of classic art rules but made entirely his own, seems to have a conversation of what religion would be in the future. In Cascade, his new solo show at Xavier Hufkens in Brussels, the colors, shapes, objects, paintings, all look like future relics. And a performance when all put together. “I make work in the studio. I see the gallery as the stage, and for me, it is kind of difficult to just get on a raw stage,” Party said to us in 2021. “I…