Śrīmad-Bhāgavatam · Text 11.23.52
Who is speaking and story frame
आत्मा यदि स्यात् सुखदु:खहेतु:
किमन्यतस्तत्र निजस्वभाव: ।
न ह्यात्मनोऽन्यद् यदि तन्मृषा स्यात्
क्रुध्येत कस्मान्न सुखं न दु:खम् ॥ ५२ ॥
ātmā yadi syāt sukha-duḥkha-hetuḥ
kim anyatas tatra nija-svabhāvaḥ
na hy ātmano ’nyad yadi tan mṛṣā syāt
krudhyeta kasmān na sukhaṁ na duḥkham
If the soul himself were the cause of happiness and distress, then we could not blame others, since happiness and distress would be simply the nature of the soul. According to this theory, nothing except the soul actually exists, and if we were to perceive something besides the soul, that would be illusion. Therefore, since happiness and distress do not actually exist in this concept, why become angry at oneself or others?
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.