Religious objects are very important to Buddists....Mani Stones are carves prayers or mantras into rocks...the pictures show tablets of rock and big rocks ....Mani Wheels are prayer wheels..they are every where and in many sizes. Turning the wheel by hand amplifies the prayers written on the wheel. If I remember right, one passes the wheel on the left and turns it in a clockwise manner.

Prayer flags and Stupas will come soon..they are also religeous objects found everywhere.