Let's start with why have a spirit in the body? Why not be the spirit?
If you're just a spirit, what does chocolate taste like? It takes energy to make visual pictures, to make sound, to taste. So when you get into the suit you can see, smell, touch, taste, feel. Back to what does love feel like?
I can have a conscious idea as a spirit. Love is nice. But what does love feel like? Well, get into a body and release dopamine. Oh, that's what love feels like. The body converts our reality into sensation so that we can experience physical things. But you also have choices of where you want to go and what you want to do. It's not just the feelings going in and going back to Source, it's the Source with information of what to do coming into the body like a two-way street.