The remnants of food and other items offered to the Supreme Lord. By accepting Krishna's prasada one can rapidly become purified and achieve pure love of God.
"mercy"; remnants of offerings to the Lord.
Divine grace and mental clarity
Grace. This can refer to the grace of god through which the devotee is liberated, as well as the offerings made during Puja which are then returned as offerings of God's grace. It can include the burning of lamps, camphor, or incense. Arati: This is the offering of light (usually in the form of an oil lamp to a deity (Linga image, river etc.) It can also refer to the entire ceremony of offerings to the deity.
("grace/clarity"): divine grace; mental clarity