endless knot
"an important cultural marker in places significantly influenced by Tibetan Buddhism such as Tibet, Mongolia, Tuva, Kalmykia, and Buryatia." wikipedia
Rosary
LoC of the Rosary (the item)
crucifix
"A crucifix (from Latin cruci fixus, meaning "one fixed to a cross") is a cross with a representation of Jesus' body, or corpus. It is a principal symbol of the Christian religion, primarily used in the Catholic, Anglican, and Eastern Orthodox Churches." (Wikipedia)
Ichthys
Fish profile pictogram used by Christians.
Latin cross
The Latin cross began as a Roman Catholic emblem but later became a universal symbol of Christianity. Wikipedia
Yin/Yang Tai Chi symbol
"seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another." wikipedia