User blog comment:Mixoris/Gate/@comment-44061-20120227225415

Actually Im not sure where you were seeing this gate on a regular basis. If I can recall the gate was only shown once in the Bleach series anime and manga. The power of a zanpakuto "forgives" a hollow killed by it allowing for the hollow to reform as a spirit and rejoin the cycle or reincarnation. But a zanpakuto can only "forgive" a hollows sins for what is done as a hollow, it doesnt work for what is done as a human. Hence the situation of if a serial killer dies and becomes a hollow and is killed by a zanpakuto the gate comes and takes the soul to hell. That only happende once. Now the only other opening or gate is the Garganta which the hollow and arrancar use to come and go between the human world and hueco mundo.