Śrīla Bhakti Siddhānta Saraswatī Goswami Ṭhākur explains the secret behind the cleansing of the Guṇḍichā Temple.
The Secret Behind the Pastime of Cleansing of the Guṇḍichā Temple
An English translation of Śrīla Bhakti Siddhānta Saraswatī Ṭhākur’s commentary on Śrī Chaitanya-charitāmṛta: Madhya-līlā, 12.135.
Through this Pastime, Jagad-guru Śrīman Mahāprabhu is teaching that if a fortunate soul desires to sit Kṛṣṇa on the altar of their heart, then they should first of all clean their heart of all contamination; making the heart spotlessly clean, peaceful, and resplendent with devotion is mandatory. If any thorny bushes, weeds, dust, or sand—anarthas—remain within the field of the heart, then the Lord, the ultimate recipient of all service, cannot be seated therein. Contamination and litter within the heart means anya-abhilāṣ (extraneous desires), karma (worldly action), jñān (speculative knowledge), yoga, and so on. Śrīla Rūpa Goswāmī Prabhu said,
ānukūlyena kṛṣṇānuśīlanaṁ bhaktir uttamā
Wherever the soul’s eternal, natural propensity for devotion has been covered over by desires unrelated to devotion, speculative knowledge, worldly action, yoga, asceticism, or any mentality that is unfavorable to devotion, pure devotion is not present. And without pure devotion, which is by nature purely spiritual, Kṛṣṇa does not appear.