Text & source
כּוֹסִי רְוָיָה · לְאֹרֶךְ יָמִים
kosi revaya · l'orech yamim
"my cup overflows" · "for length of days"
Source: Psalm 23 · תהילים כ״ג (the full psalm, in scribal script; verses 5 and 6 highlighted here). The vessel reads at once as a cup of blessing and an hourglass.
In my work a cup can also be an hourglass. This one joins two phrases from Psalm 23 · תהילים כ״ג: כוסי רויה, my cup overflows, and לארך ימים, for length of days. The drops falling from it can be blessing spilling past the rim, or sand slipping through the narrow waist of time. One shape holds both abundance and everything that cannot be kept.
The psalm never takes the valley away. It offers company through the valley rather than a promise that the valley will end. If the cup had no edge, overflowing would mean nothing; if our days had no limit, I doubt we would learn to notice them. To read length of days, the eye has to cross the cup that is also an hourglass: a fullness that can only be understood by passing through its own finitude. I call it a study because I am still learning to read it.