Daf Yomi - Beitzah 18- The Holy Light of Creation

The Gemara states that a vessel that became tamei prior to Yom Tov cannot be immersed on Yom Tov, whereas a vessel that became tamei on Yom Tov can be immersed on Yom Tov. The Sefarim write that the light of creation that HaShem concealed for the righteous in the future is revealed on the Yomim Tovim. Perhaps we can suggest in a non-halachic manner that a vessel that became tamei on Yom Tov can be immersed on Yom Tov because the light of creation is so strong that it purifies everything on Yom Tov.