A lot of people have recently asked me about setting up an Altar so I thought I would answer some of your questions here. Many religions and spiritual practices use Altars, not just Witches. An Altar is a dedicated space where you display and gather crystals and rocks, images, herbs and plants, special foods, Tarot cards, spell jars, etc all for a specific intention.
Altar Clothes can be used in many ways by people with various belief systems. Traditionally they are used to protect the surface of an Altar which is often made of wood or another sensitive material. Using one can be seen as a sign of respect or of the changing of the seasons or moon phases.