My goodness! Who woulda thunk that it would take three days to weave one little triangle! Who woulda thunk it? The thing took minutes to an hour to weave, a day to unweave (or something like that), and three days to re-weave!
For you newbies out there, the reason is simple. The weaving is occurring in bounded space. The new weft that is being inserted must meet, fit, and blend with pre-existing wefts on the hypotenuse and wefts at the base of the triangle. Moreover, it is impossible to manipulate the warps with fingers and bobbins; instead, a curved tip tapestry needle must be used. Furthermore, since the new space is bounded, the beating down of the weft and its curvature around the warps (over-under-over) are a bit more difficult to achieve so that more weft must be inserted to make the newly rewoven area as densely beaten down as the surrounding areas. If insufficient weft is needle-woven in, rice grains will appear on the tapestry.
What are rice grains? Little white areas of weft that show if the weft is not densely woven or if there are inadvertent skips in the passage of the weft across the warps.
So, what’s the lesson for today? Sometimes even with a design to follow, you make changes on the fly as you weave. If you’re not sure about the rightness of proceeding exactly according your design, leave the section that is problematical and proceed to weave another one. Sometimes, because of the nature of weaving itself, you just need to stop until you reconcile the vision in your mind’s eye with what you are tamping down on the warps.