Interesting! Thank you,
@ssgardener. I think
@RoseBlush1 shared that for the "more information" part rather than instructions on actually pollinating, but I'm glad I won't need a ten year wait. And since she referred to "fruit from the cross", perhaps she thought I was cross-pollinating with another plant?
However. I did hear from at least two people (and I can't remember who one was) about pollinating the flowers. One was my cousin who said her mother used to do that with a lemon tree's flowers. Perhaps they were all misinformed.
We shall see how this unfolds! I am not able to give artificial light but the tree is in a South window and gets as much sun as anybody in the house does. Honestly, I'll be so happy for the flowers and if I get fruit it's a bonus. In the spring the tree can go outside again and that should allow fruit production.