After completion of the 14th degree, the Masonic educational journey continues with the degrees of the Rose Croix, which include the 15th to the 18th degree, all of which are obligatory. The 15th and 16th degrees related to the rebuilding of the Second Temple by Zerubbabel. The Second Temple degrees portray the never ending struggle against the adversaries of Truth and Light: a struggle which is still going on today. The 17th degree is an approach to, and the 18th degree a recognition of, the religious ethics in universal terms: thus assisting in the building in our hearts of the Third Temple not made with hands. The 18th degree culminates with the degree of the Knight Rose Croix.