Heaven and hell both are dependent on our senses. When subdued, they lead us to heaven and when indulged in, they lead us to hell.
इन्द्रियाण्येव तत् सर्वं यत् स्वर्गनरकावुभौ। निगृहीतविसृष्टानि स्वर्गाय नरकाय च॥