CC Ādi 14.70

ei-mata līlā kari’ duṅhe gelā ghare
gambhīra caitanya-līlā ke bujhite pāre
Word for word: 
ei-mata — in this way; līlā — pastimes; kari’ — executing; duṅhe — both of them; gelā — returned; ghare — home; gambhīra — very grave; caitanya-līlā — the pastimes of Lord Caitanya; ke — who; bujhite — to understand; pāre — is able.
Translation: 
After thus expressing their feelings to each other, Lord Caitanya and Lakṣmī returned home. Who can understand the grave pastimes of Lord Caitanya Mahāprabhu?