Acharya Prashant explains a couplet by Sant Dadu Dayal: "O fool, keep the jewel of your mind safe, do not hand it over to every person. Dadu says, the appraiser, the jeweler, the true saint will take it." He states that two fundamental, seemingly contradictory things are said about the mind. They appear different, perhaps even opposite, but they go together, and this strange confluence is the mind. The first point is that the mind is a jewel ('man manik hai'); it is precious and invaluable. Simultaneously, the second point is that one must not give it into everyone's hands ('jan-jan haath na dehu'). The speaker elaborates on this paradox: the mind is a jewel, but its preciousness is not guaranteed. It is ready to lose its value and become like the dust of the market. It is pure, but also ready to become impure. This is because the mind has two ends. One end is the Self (Atma), which is its true, innocent, and pure nature. The other end is its nature (Prakriti) to be influenced by the world, which can cover it in dust. The speaker clarifies that the 'jeweler' or 'true saint' mentioned in the couplet is the Guru. The Guru is one who can recognize the jewel of the mind even when it's covered in dust. The Guru's role is to restore to you what you never truly lost. Therefore, when the mind seeks to go outwards, it should seek the company of a Guru, who is like a jewel himself and can lead you back to your own heart, your true Self. He also distinguishes between alertness born of fear and true attention (Dhyan). Being constantly afraid of being influenced is itself a form of being influenced, whereas true attention is fearless.