CCC 2627 Two fundamental forms express this movement: our prayer ascends in the Holy Spirit through Christ to the Father – we bless him for having blessed us;1 it implores the grace of the Holy Spirit that descends through Christ from the Father – he blesses us.2

1 Cf. Eph 1:3-14; 2 Cor 1:3 7; 1 Pet 1:3-9.
2 Cf. 2 Cor 13:14; Rom 15:5-6,13; Eph 6:23-24.