ॐ

ॐ कारं बिन्दु सम्युक्तं नित्यं ध्यायंती योगिनः
कामदं मोक्षदं चैव ॐ काराय नमो नमः

he yogis meditate constantly on the syllable "AUM"composed of the sounds A, U & M. This ॐ fulfils all our desires and leads to liberation. Salutations again and again to ॐ.