SB 10.3.36

TEXT 36
 
TEXT
WvaM vaAM tapyataAestaI˜aM
tapa: par"maau"Sk(r"ma,
id"vyavaSaRs$ah"›aAiNA
ã"Ad"zAeyaumaRd"AtmanaAe:
evam vam tapyatos tivram
tapah parama-duskaram
divya-varsa-sahasrani
dvadaseyur mad-atmanoh
evam-in this way; vam-for both of you; tapyatoh-executing austerities; tivram-very severe; tapah-austerity; parama-duskaram-extremely difficult to execute; divya-varsa-celestial years, or years counted according to the higher planetary system; sahasrani-thousand; dvadasa-twelve; iyuh-passed; mat-atmanoh-simply engaged in consciousness of Me.
TRANSLATION
Thus you spent twelve thousand celestial years performing difficult activities of tapasya in consciousness of Me [Krsna consciousness].