In your travels, you may find many spells that you can copy into your spellbook, but cannot cast because you do not have spell slots for them, even the ritual spells!

Well, no longer. This feat allows you to make higher level ritual spells appear in your character sheet even if you do not have any spell slots for those levels. Have you found Contact Other Plane as a 1st level wizard? No problem! You can cast that like it's nothing.