Cheers, I should have been more precise in my wording there. I should have referred to some (Idealist) schools of thought in Buddhism & Hinduism, such as the Yogachara school in Buddhism.

Particularly with Hinduism, its embrace of various philosophies is very broad and includes strains of Materialism, which appears to be the other person's viewpoint, so again, I should have been more careful with my wording.