My Dear Raktaka,
…Regarding the two books you have mentioned, Sri Ramacharitamanasa by Goswami Tulasi Das is not very authorized, and Ramayana is authorized…. The author of Ramacharitamanasa, Goswami Tulasi Das, has a tint of Mayavadi philosophy. He belongs to the Ramananda Sampradaya. They are mixed up combination of personalist and impersonalist. Therefore, the author is not considered as pure Vaisnava. Pure Vaisnava is free from all material contamination of fruitive activities and mental speculation. The pure Vaisnava is simply, purely disposed to transcendental loving service to Krishna. The pure Vaisnava rejects anything which has no pure idea of serving the Personality of Godhead.
I hope this will meet you in good health.
Your ever well-wisher,
A.C. Bhaktivedanta Swami
September 6, 1969