PURPORT

All the Visnu forms had four arms, with conchshell and other articles, but these characteristics are also possessed by those who have attained sarupya-mukti in Vaikuntha and who consequently have forms exactly like the form of the Lord. However, these Visnu forms appearing before Lord Brahma also possessed the mark of Srivatsa and the Kaustubha gem, which are special characteristics possessed only by the Supreme Lord Himself. This proves that all these boys and calves were in fact directly expansions of Visnu, the Personality of Godhead, not merely His associates of Vaikuntha. Visnu Himself is included within Krsna. All the opulences of Visnu are already present in Krsna, and consequently for Krsna to demonstrate so many Visnu forms was actually not very astonishing.

The Srivatsa mark is described by the Vaisnava-tosani as being a curl of fine yellow hair on the upper portion of the right side of Lord Visnu's chest. This mark is not for ordinary devotees. It is a special mark of Visnu or Krsna.