The sect strengthened its basis by conducting incantation of Tendai Esoteric Buddhism (Taimitsu) and becoming comprehensive Buddhism (there is doubt and criticism concerning the reason why the sect needed to conduct nenbutsu and/or incantation if it believed the doctrine of Hokke-kyo sutra was right).
天台密教（台密）などの加持も行い、総合仏教となる事によって基盤を固めた（しかし、法華経の教義が正しいのならば、なぜ念仏や加持を行わねばならないのか、という疑問・批判もある）。