Verse 68

आनन्दे परिणामित्वादनानन्दपदं गतः ।नानन्दे न निरानन्दे ततस्तत्संविदाबभौ

In plain words

Because ānanda is subject to change, he passed to the station of non-ānanda; neither in ānanda nor in the absence of ānanda — then that saṃvit of his shone forth.