satyam uktaṁ kintv iha vā eke na manaso’ddhā viśrambham
satyam uktaṁ kintv iha vā eke na manaso’ddhā viśrambham anavasthānasya śaṭha-kirāta iva saṅgacchante |
tathā coktam—
na kuryāt karhicit sakhyaṁ manasi hy anavasthite |
yad-viśrambhāc cirāc cīrṇaṁ caskanda tapa aiśvaram ||
nityaṁ dadāti kāmasya cchidraṁ tam anu ye’rayaḥ |
yoginaḥ kṛta-maitrasya patyur jāyeva puṁścalī ||
kāmo manyur mado lobhaḥ śoka-moha-bhayādayaḥ |
karma-bandhaś ca yan-mūlaḥ svīkuryāt ko nu tad budhaḥ ||
(Śrīmad Bhāgavatam: 5.6.2–5)
“[Śukadeva Gosvāmī to Parīkṣit Mahārāja:] You have spoken correctly, but here [i.e., in this world], the great do not place trust in the unstable mind, which is like a cunning kirāta. Similarly, it also said, ‘One should never make a friendship with the unstable mind, as a result of trust in which the long-standing austerity (tapas) [even] of an īśvara is lost. It [i.e., the unstable mind] always gives an opening to desire (kāma) and [other] enemies of a yogī who has made a friendship [with it] which follow from that [i.e., desire] like the promiscuous wife of a [trusting] husband. Indeed, what intelligent person would accept [as a friend] that [mind] which is the basis of the bondage of karma and [the basis of] desire, anger, mania, greed, lamentation, delusion, fear, and so forth?’”