Bhagavad Gita 18.13
पञ्चैतानि महाबाहो कारणानि निबोध मे । साङ्ख्ये कृतान्ते प्रोक्तानि सिद्धये सर्वकर्मणाम् ॥
pañcaitāni mahā-bāho kāraṇāni nibodha me / sāṅkhye kṛtānte proktāni siddhaye sarva-karmaṇām
Translation
Learn from me, mighty-armed one, these five causes for the accomplishment of all actions, declared in the Sankhya that puts a stop to karma.
Reflection
What recent success or failure have you claimed sole credit or blame for, missing four other causes?
Read this verse in its chapter: Chapter Eighteen
Pivot. Krishna now takes apart the very notion of single agency. He invokes the analytic tradition, Sankhya in its terminal form, the one that aims to end karma, and offers a precise count, panchaitani, these five. The point is preparation. Before he tells Arjuna why one who claims sole authorship of his deeds is deluded, he wants the components on the table. The next two verses will name them. Notice the framing already. Krta-anta, the end of karma, is the destination. The five-cause analysis is not philosophy for its own sake. It is a tool for cutting the false I out of the act.