Endless knot and wheel

 2 years later: The Endless knot

The endless knot has been described as "an ancient symbol representing the interweaving of the Spiritual path, the flowing of Time and Movement within That Which is Eternal. All existence, it says, is bound by time and change, yet ultimately rests serenely within the Divine and the Eternal."

The wheel and the knot, bamboo style

The dharmachakra (IAST: dharmacakra; Pali dhammacakka; "Wheel of the Dharma"), is one of the Ashtamangala of Indian religions such as Hinduism, Jainism and Buddhism. It has represented the Buddhist dharma, Gautama Buddha's teaching of the path to Nirvana, since the time of early Buddhism.

Look here for making of the wheel.