CC Madhya 1.87
udghūrṇā-pralāpa taiche prabhura rātri-dine
Just as Śrīmatī Rādhārāṇī talked inconsistently with a bumblebee in the presence of Uddhava, Śrī Caitanya Mahāprabhu in His ecstasy talked crazily and inconsistently day and night.
This unmāda (madness) is not ordinary madness. When Śrī Caitanya Mahāprabhu talked inconsistently, almost like a crazy fellow, He was in the transcendental ecstasy of love. In the highest transcendental ecstasy there is a feeling of being enchanted in the presence of the enchanter. When the enchanter and the enchanted become separated, mohana, or bewilderment, occurs. When so bewildered due to separation, one becomes stunned, and at that time all the bodily symptoms of transcendental ecstasy are manifested. When they are manifest, one appears inconceivably crazy. This is called transcendental madness. In this state, there is imaginative discourse, and one experiences emotions like those of a madman. The madness of Śrīmatī Rādhārāṇī was explained to Kṛṣṇa by Uddhava, who said, “My dear Kṛṣṇa, because of extreme feelings of separation from You, Śrīmatī Rādhārāṇī is sometimes making Her bed in the groves of the forest, sometimes rebuking a bluish cloud, and sometimes wandering about in the dense darkness of the forest. Thus She has become like a crazy woman.”