Occasionally (Books)
Bhagavad-gita As It Is
BG Chapters 7 - 12
BG 9.30, Purport:
The material contamination is so strong that even a yogī fully engaged in the service of the Lord sometimes becomes ensnared; but Kṛṣṇa consciousness is so strong that such an occasional falldown is at once rectified. Therefore the process of devotional service is always a success. No one should deride a devotee for some accidental falldown from the ideal path, for, as explained in the next verse, such occasional falldowns will be stopped in due course, as soon as a devotee is completely situated in Kṛṣṇa consciousness.