>>76332007
The main work of his The World as Will and Representation, but passages from that can be a bit confusing if you are not familiar with him. His essay on the metaphysics of love is a good place to start: https://pryazhnikov.wordpress.com/wp-content/uploads/2008/06/mataphysics_of_love_eng.pdf

I will also attach some passages from the World as Will that give you a good overview of what he thinks