"cress" - fire. Really, the artificial sacrificial fire-kres received by a cutting in the opinion of our far ancestors as if revived anew, came to life, revived therefore treated him with such respect.
"kolovrat" - a symbol of the sun. Symbolized a victory of the sun, light over darkness, lives (eternal) over death. Symbol of life and creation.
Kres with kolovraty has preserved it is made of silver with putting gilding 24 carats