The One who is intellect and divine consciousness.
She gives the devotee the intellect to traverse daily life.
She grants the devotees the ability to understand and partake in the divine consciousness.
A upsaka with her grace might be able to gleam a few 100 years worth of knowledge from a mere page, while another without her grace might have to spend 100 years reading to cover the same knowledge.
Hence the name, Medha.