That's the idea that when you die, you can have yourself frozen, and then, at some point when technology has advanced enough, you can be thawed out and repaired and revived and so resurrected.
To je ideja da, kada umrete mogu vas zamrznuti, a zatim, kada tehnologija postane dovoljno napredna, mogu vas odmrznuti, "popraviti" i oživjeti i tako uskrsnuti.