एतैर्विमुक्तः कौन्तेय तमोद्वारैस्त्रिभिर्नरः ।
आचरत्यात्मनः श्रेयस्ततो याति परां गतिम् ॥ १६.२२ ॥

etair-vimukta: kaunteya tamo-dvārais-tribhir-nara: |
ācaraty-ātmana: śreyas-tato yāti parām gatim || 16.22 ||

Krishna concludes:

He, who is free of these three doors (passion, hatred and greed) to hell (darkness), works towards self-felicity. Thus he attains the supreme goal.

True spiritual evolution consists in gaining freedom from this threefold hell. Once he ensures this, the seeker is safe and will head towards supreme redemption.