This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
徖 combines 彳 (movement) with 宗, but the exact historical development and original meaning are uncertain.
The left side 彳 suggests movement, and the right side 宗 looks like a roof over a small altar. Imagine walking toward a shrine, but the purpose remains unclear.
For ソウ, picture a soul (ソウ) wandering along a path (彳) toward a shrine (宗): soul -> ソウ.