Reader Question: What Does Ik Oankaar Mean to You?

What does Ik Oankaar mean to you? Or, what's the best explanation you've heard?

Vaahiguroo Jee.

The best explanation for Ik Oa(ng)Kaar is Mool Mantr. The best explanation for Mool Mantr is Jap Jee Saahib. The best explanation for Jap Jee Saahib is Dhan Sree Guroo Granth Saahib Jee Mahaaraaj.