CC Madhya 24.287
pāriṣada, sādhana-siddha, sādhaka-gaṇa āra
dui-vidha bhakta — these two varieties of ātmārāma devotees; haya — are; cāri cāri prakāra — each of four different categories; pāriṣada — personal associate; sādhana-siddha — liberated to the position of associates by perfection in devotional service; sādhaka-gaṇa āra — and devotees already engaged in the devotional service of the Lord.
“Both the ātmārāmas engaged in regulative devotional service and those engaged in spontaneous devotional service are further categorized into four groups. There are the eternal associates, the associates who have become perfect by devotional service, and those who are practicing devotional service and are called sādhakas, of whom there are two varieties.