Observed large rectangular lights blinking sequentially along two edges perpendicular to each other, about eight or so lights per edge.

Saw these lights blinking in a repeating pattern. Sequentially on and off in a line and then same pattern but running perpendicular to the first set. the lights were moving slowly due west. My view was partially blocked by trees along shoreline. They continued in this pattern while slowly moving away. Then disappeared from sight. It was either a ways off and thus really large or close and at relatively low altitude to be obscured by the shrine trees. Observed from a lakeside dock. Lights were very bright white to slightly blue. very intense light and each light panel was rectangular and seemed large. I seemed not to think much about it till later. A bit freaky.