देवान्भावयतानेन ते देवा भावयन्तु वः।
परस्परं भावयन्तः श्रेयः परमवाप्स्यथ।।3.11।।
3.11. With this you must gratify the devas and let the devas gratify you; [thus] gratifying one another, you shall attain the highest good.
3.11 Devan etc. Devas : Those that have a tendency of playing i.e., the deities who preside over the organs and who dwell in the senses (or who are nothing but the sensitive faculty of the senses) and who are well-known in the Rahasyasastra. You must gratify these deities by this action i.e., feed them compability with sense-objects. Then, being satisfied, let these deities gratify (cause) you to have emancipation suitable exclusively to the intrinsic nature of the Self. For, [then alone you attain] a capacity to remain in your own Self. Thus when the mutual gratification - you gratifying the [deities of the] senses, and they letting [you] be absorbed in the Self - in the uninterruped series of periods of being extrovert and of meditation, you shall soon undoubtedly attain the highest good i.e., the Supreme that is marked with the total disappearance of [all] mutual differences. This path of the said nature is to be followed not merely for emancipation, but also for gaining all super - human powers (or success siddhi). This [the Lord] says -
Devaan bhaavayataanena te devaa bhaavayantu vah; Parasparam bhaavayantah shreyah param avaapsyatha.
devān—celestial gods; bhāvayatā—will be pleased; anena—by these (sacrifices); te—those; devāḥ—celestial gods; bhāvayantu—will be pleased; vaḥ—you; parasparam—one another; bhāvayantaḥ—pleasing one another; śhreyaḥ—prosperity; param—the supreme; avāpsyatha—shall achieve