Enlightenment as applied to enlightened being such as Ramana Maharishi implies a radical change of consciousness from the everyday state.
Does that apply to followers of sects that only believe in Bhakti?
Bhakti is one of the ways in developing an inclination towards the God, whereas the REALISATION stage of the sages like Sri Ramana Maharshi is the final stage.
Saint Namadev was a devotee of Vitthal, Sri Krishna. Later he got REALISATION.
Once all Saints had assembled. Muktabai asked Gora Kumbhar to test all the assembled Saints. He picked up a piece of wood and slowly tapped it on the head of all Saints. When he tapped it on the head of Namdev, Namdev did not say anything, but anger could be seen on his face. His ego was hurt and he thought, 'How can I be tested like an earthen pot ?' Later Gora Kumbhar said, "Except Namdev all other earthen pots are well baked". After listening to this, Namdev went to Vithhal and told Him what had happened. God told him, "When Muktabai and Goroba are saying your head is not developed then it must be true, because you have not taken the shelter of Sadguru. There is this devotee of mine, Visoba Khechar, you go and meet him. He will bestow you with knowledge".
When Namdev came to see Visoba Khechar, Visoba was sleeping with his feet resting on a Shiva pindi (shivaling). Namdev was outraged and asked him to move his feet away from the Shivaling. Visoba told Namdev, "You place my feet in a place where Shiva does not exists". Wherever Namdev would put Visoba's feet, a Shivalinga would manifest there. The entire sanctum sanctorum was filled with Shivalingas. Namdev was perplexed to see this. Visoba Khechar then explained to Namdev, "God is everywhere; but our sensory organs do not realise that". After hearing this, Namdev was filled with devotion. With the grace of Guru he received the knowledge that 'Brahma is everywhere'. Blockquote