Give examples and explain how ordinary objects are used as disguised religious symbols in the Mérode Altarpiece

What will be an ideal response?

Essay responses should include these points:
The altarpiece includes multiple views of the house, both interior and exterior.
Examples of ordinary objects in the painting include the water pot, candle, and towel.
The hanging water pot in the background niche refers to Mary's purity.
The ewer is also a symbol of purity and the three white flowers represent the Trinity.
The just-extinguished candle implies the arrival of Jesus and Gabriel.
The towel hung over the prominent, hinged rack next to the niche may be a tallis.