This Blessing was created by Mistletien Crowe, daughter of Arianna Crowe, as a means to navigate through the Forest of Forgotten Lore, her mother's shadowy domain, and to seek out intruders that may be lurking within the dark. The Forest of Forgotten Lore is a grim place full of mystery and danger and having the ability to peer through the gloom becomes pivotal.
When you use Misteltien's Sight, it functions like the ability: Darkvision. Like normal darkvision, it does not allow characters to see anything that they could not see otherwise. Invisible objects are still invisible, and illusions are still visible as what they seem to be.