Bhagavad Gita · 9.34

मन्मना भव मद्भक्तो मद्याजी मां नमस्कुरु।मामेवैष्यसि युक्त्वैवमात्मानं मत्परायणः॥

man-manā bhava mad-bhakto mad-yājī māṁ namaskuru mām evaiṣhyasi yuktvaivm ātmānaṁ mat-parāyaṇaḥ

Fix your mind on Me, be My devotee, worship Me, and bow down to Me. Having thus united your self with Me, taking Me as your supreme goal, you shall certainly come to Me.

— Bhagavad Gita 9.34

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)