Tack us on at the end of your triumphal processions

Jesus, be the Paschal joy that remains in our hearts throughout the year, and attach us, reborn by grace, to your triumphs.

Esto perenne mentibus | Paschale, Iesu, gaudium | et nos renatos gratiae | tuis triumphis aggrega.

     Stanza 6 of the pre-11th-century (?) Laetare, caelum, desuper, translation (with italics) mine.  I have not done any research into this one, though the stanza does not occur in Hic est dies uerus Dei (in conjunction with which it occurs, also as stanza 6, in the Liturgia horarum throughout the Easter season) as reproduced on pp. 414-417 of Ambroise de Milan:  Hymnes, ed. Jacques Fontaine, Patrimoines christianisme (Paris:  Cerf, 2008).  For "triumphis" read "triumphal processions."  For why that is plural I wouldn't know, unless the triumphi in question are (and this would make a lot of sense) "perennially" liturgical in nature (as with, at Easter itself, the newly baptized in train).