'I (the sacrificer) shall go thither, when this life is over. Take this! (he says, in offering the libation.) Cast back the bolt!' Having said this, he rises. For him the Vasus fulfil the morning-oblation.

In plain words: He says, 'When this life is over I will go there. Take this offering! Open the door!' Then he stands up. For such a person, the Vasus complete the morning offering.