Mental rack, no tiles in front of me

Solved RETINAS? not a bingo — RETINAS bingo, started with a full rack of A E I N R S T plus a held B, and just... held it all in my head while the dog barked at the mailman. It's the first time I've worked out a seven-letter bingo without physically touching the tiles, like the rack finally got built somewhere behind my eyes. I keep replaying it because it felt less like memorization and more like the tiles decided to line up.