The New City Catechism Question 51: Of what advantage to us is Christ’s ascension?

Christ physically ascended on our behalf, just as he came down to earth physically on our account, and he is now advocating for us in the presence of his Father, preparing a place for us, and also sends us his Spirit.

Romans 8:34
Who is to condemn? Christ Jesus is the one who died—more than that, who was raised—who is at the right hand of God, who indeed is interceding for us.