Yogiraj Lahiri Mahasaya says,

All forms, images, and statues belong to the One only. Forms are many. But the Formless is One only. Visiting all the forms, listening to instructions, orations, lectures, and performing rituals, according to emotions and thoughts, and beliefs – are the external parts of religion and spiritual practices. Finally, one has to resort to Adwaita (non-duality) Philosophy and Practice. The ultimate in knowledge and full Realization is possible in Adwaita Philosophy and Practice only. There, the differences and distinctions between God and his devotee(devotees) disappear. There exists and appears the Self-Effulgent, Unmanifest, Eternal SELF only.

With Love and Oneness
Paramhansa Atmananda Ji