Of course, these (meditational) austerities were performed in the Satya-yuga, Dvapara-yuga and Treta-yuga, but not in this age of Kali. In this Kali-yuga, one can attain the same results simply by chanting the Hare Krsna maha-mantra: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.