Final answer:
Candlesticks are not religious symbols, but instead, they are cross staffs used by astronomers and navigators before the invention of the telescope.
Step-by-step explanation:
Candlesticks are not religious symbols. They are actually cross staffs, also known as Jacob's staffs, which were tools used by astronomers and navigators before the invention of the telescope. A cross staff consists of a main staff with a perpendicular crosspiece that can slide up and down along it.