Symbol of the School of the Way of the Return to the One (皈依道院 Guīyīdàoyuàn), a Chinese folk religious sect which philanthropic branch is the Red Swastika Society (红卍字会 Hóngwànzìhuì). It is a stylised wan (卍, "all things", "universe"), or swastika.
Own reproduction of the logo from the website of the Taiwan branch of the sect.
Aethelwolf Emsworth.