Hazrat Mufti Ebrahim Salejee (Daamat Barakaatuhu) mentioned:
The real commodity for one to earn and purchase is taqwa. The hadeeth teaches us that the one who has taqwa will remain safe even if he is in the territory of his enemy. So make an effort to acquire the wealth of taqwa. Taqwa is for one to have the consciousness of Allah Ta’ala at all times. At any given moment one should not be unmindful of His presence and one should have the conviction that Allah Ta‘ala is watching him at all times.