Broader theological connection
Revelation 8:3–4
Prayer before the throne
3 And another angel came and stood before the altar, having a golden censer: and there was given to him much incense, that he should offer of the prayers of all saints, upon the golden altar which is before the throne of God.
4 And the smoke of the incense of the prayers of the saints ascended up before God from the hand of the angel.
Douay–Rheims · Challoner revision · Apocalypse 8:3–4
Why this matters
An angel presents incense with the prayers of the saints before God. The text supplies imagery for prayer in heaven; it is not a direct description of Marian intercession.