Example Sentences:

Ramayana:  Ravana’s obsession with Sita shows how lust can be a portal to degradation and self-destruction.

Mahabharata:  The Pandavas rising to heavenly abodes by climbing up the Himalayas suggest that those towering mountains serve as portals between earth and heaven.

Bhagavad-gita:  The Gita’s setting demonstrates how the eyes can be portals to illusion whereas the ears can be the portals to enlightenment.