Whatever the belief system or whoever they're dedicated to, shrines have a way of making you contemplative. Visit Hisaizu Shrine and share a silent moment with the locals.
If you're planning to stick around a while in Koshigaya, Hisaizu Shrine is a good place to start your exploring. This sacred place is one of numerous attractions worth seeing here. Saitama Stadium 2002, Shimizu Park, and Soka Park are also waiting to be discovered close by.