The ideas of Guru Nanak had a huge impact on people from the very beginning. He emphasized the importance of worship of one God. He insisted that caste, creed or gender was irrelevant for attaining liberation. He himself used the terms nam, dan and isnan for the essence of his teaching, which actually meant right worship, welfare of others and purity of conduct. His teachings are now remembered as nam-japna, kirt-karna and vand-chhakna, which also underline the importance of right belief and worship, honest living, and helping others.