PURPORT

Although an incarnation of the material energy, Lord Brahma is nonetheless the director of the material mode of passion. Similarly, Lord Siva, although simultaneously one with and different from Lord Krsna, is still the incarnation of the mode of darkness. However, Lord Visnu is Krsna's personal expansion; therefore He is the director of the mode of goodness and is always transcendentally situated beyond the jurisdiction of the modes of material nature. Lord Visnu is the original personal expansion of Krsna, and Krsna is the original source of all incarnations. As far as power is concerned, Lord Visnu is as powerful as Lord Krsna because He possesses all the opulences.