The unassuming rubric of Book 19 has given the impression of a casual ragbag of leftover topics.^[109] While the topics have an undeniably bric-a-brac appearance at first sight, I would argue that they combine to create a single overarching idea: that earthly things can lead us to an understanding of heavenly things and to reconciliation with God. The final Book deals with the ways in which we perceive through our senses ‘the accidents of matter’ in terms of colour, flavour, shape, weight, number and sound. The chapters on colours, tastes and smells, sounds, quantities and vessels implicitly refer back to experiences of vineyard and manorial hall. We have seen that Books 6, 9 and 13 reinforce the idea of homecoming, rest and reward at evening. Books 12 to 18 itemise the raw materials of the lord's feast: foods and drink, timber, flax, dyes, clays, metals, shells, leather, candle wax and more. Book 17 refers to a wide range of plant foods, cooking and processing, growers and harvesters, and the properties of grapes and wines. Book 19 then anatomises the lord's feast in its chapters on colour, taste and smell; milk and milk products; honey and beeswax; vessels and money; order, measure and music, and the senses through which we perceive and evaluate all these. As we have seen, the bee is an idealised worker in constant motion, and in Book 19 the products of the bees’ activity are itemised as those which can be tasted, eaten and drunk, and above all used to make light.^[110] Bartholomew recounts how beeswax candles illumine those things which are hidden in darkness. They have three properties: material, use and shape. The material is three-fold: wick, wax and flame; they are pyramidal in shape. Carried before lords, they are used to light the way.^[111] The final Book of ‘Properties’ offers the reader a sense of purpose to the bees' industry in this description of the end-product, the light-giving candle, with its three-fold qualities emphasising the religious and platonic associations of the number three and the triangle.^[112]