Days after finishing Alex Shakar’s “Luminarium,” I’m still stumbling around the house in a mixture of wonder and awe. His new novel considers how our perceptions of the world are manipulated and controlled. I can’t claim to have understood all of it, but I did find it completely absorbing, and anyone hungry for a deeply philosophical novel that, nonetheless, maintains its humility will find here a story worth wrestling with. You know who you are: You left “The Matrix” and “Inception” dazzled but wishing for a little less computer-generated wizardry and a lot more articulation of the movies’ ideas (which also indicates that you should never become a Hollywood producer).