For a devotee, "hell" means forgetfulness of Krishna. However, the devotee does not pray to Krishna to be delivered from hell. A devotee simply prays that the Lord will situate him in a place that
will allow him to remember the Lord. Whether it is heaven, hell, or in liberation, the devotee rejects the idea that he can be happy without remembering Krishna. But he does not remember Krishna for his own happiness. He remembers Krishna because his mind cannot give up thoughts of Krishna for even a moment.
(Collected Letters To My Disciples, Pg 22, 5th Paragraph)