Sanskrit
यान्ति देवव्रता देवान् पितॄन्यान्ति पितृव्रताः । भूतानि यान्ति भूतेज्या यान्ति मद्याजिनोऽपि माम् ॥
yānti devavratā devān pitṝn yānti pitṛvratāḥ bhūtāni yānti bhūtejyā yānti madyājino 'pi mām
Translation
They who worship the Shining Ones go to the Shining Ones; to the Ancestors go the Ancestor-worshippers; to the Elements go those who sacrifice to Elementals; but My worshippers come unto Me.
Annie Besant · The Bhagavad-Gita, translated by Annie Besant (4th ed., 1922) — Wikisource · Public Domain
Explanation
A compact taxonomy: the object of worship determines the destination — deva-worshippers reach the devas, ancestor-worshippers reach the pitrs, worshippers of elemental spirits reach the bhutas, and Krishna’s own devotees reach him. The logic isn’t arbitrary reward so much as a stated law of attention: whatever practice is oriented toward is what is actually arrived at, which retroactively explains the ritualists of verse 21 — they got exactly the heaven they aimed for, temporary as it was — and sets up the far larger claim, two verses on, that sincerity of offering matters more than its scale when the object is Krishna himself.