Please select a collection in Theme Setting to display the products (Sidebar -> Featured Products Sidebar)
Custom CMS Block
Custom CMS block displayed at the left sidebar on the Catalog Page. Put your own content here: text, html, images, media... whatever you like.
There are many similar sample content placeholders across the store. All editable from admin panel.
For Oil Diffusion, the bracelets are made of lava ball diffusers. Lava balls are highly porous and resuable which offers superior oil diffusion than poms or felt. Lava balls are also the easiest to wash, just place the balls in hot water with few drops of optional vinegar.