You have personally seen how the King of Cedi [Śiśupāla] achieved success in yoga practice, although he hated Lord Kṛṣṇa. Even the actual yogīs aspire after such success with great interest by performance of their various practices. Who can tolerate separation from Him?
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
दृष्टा भवद्भिर्ननु राजसूये चैद्यस्य कृष्णं द्विषतोऽपि सिद्धिः । यां योगिनः संस्पृहयन्ति सम्य- ग्योगेन कस्तद्विरहं सहेत
dṛṣṭā bhavadbhirnanu rājasūye caidyasya kṛṣṇaṃ dviṣato'pi siddhiḥ | yāṃ yoginaḥ saṃspṛhayanti samya- gyogena kastadvirahaṃ saheta
SB 3.2.19