A very important part of G-d’s “ideas” of what is spiritual and moral are the halachos found in His Torah, including muttar/assur. Of course He wants you to take it seriously. If you find that some aspects of your life seem to be more pleasant without taking halacha seriously, then that is your challenge and your nisayon to overcome that. I wish you much hatzlocha in that.
Just don’t rationalize that He doesn’t want you to take His laws very seriously. That doesn’t make sense.