Buddha Vajrasattva is the aggregate of consciousness of all the Buddhas, appearing in the aspect of a white coloured Deity specifically in order to purify sentient beings negativity. He is the same nature as Buddha Vajradhara, differing only in aspect.
班雜薩埵為一切眾生菩提心之本體個性堅固如金剛 亦名金剛心菩薩。與顯教之菩賢菩薩同體異名是為諸佛之長子。金剛薩埵為消業滅罪之唯一主尊，行者為懺罪解冤，成就無上菩提必經階程。
在密教裡面，其實菩薩這兩字，也是薩埵的意思。金剛薩埵也就是金剛菩薩。