Earn a lot, and earn true wealth

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

Questioner(Q): Dear Acharya Ji, Pranaam!

Since three months we have been studying Guru Granth sahib, and my mind is filled with love for God, his name, and devotion for Guru. Today is the last class, so I wished to conclude all that I have learned and listened to so far with more clarity.

Quoting from Sukhmani sahib firstly:

“Renounce all clever tricks, O mind.
In the company of the holy, you shall obtain the true wealth
So, gather the Lord’s name as your capital, and trade in it.
Meditate on the One, and worship the One.
Remember the One, and yearn for the One in your mind.
Sing the endless glorious Praises of the One.
With mind and body, meditate on the One Lord God.”

Guru Nanak Ji, speaks about the clever tricks of the mind, the true wealth, and the trade by using Naam as the capital, what do they mean? And he has instructed us to remember, worship, sing and praise the glories and meditate on the One Lord all the time. Do all of them mean the same thing or are they different from each other? I don’t know exactly what to do.