The Protection card, Needs family, yin polarity, evokes a need for shelter, a cloak covering you with warmth. It signals that a fragile part of you deserves to be sheltered for now. Drawing this card invites you to identify what needs protecting, without shutting yourself away.
In Oradia's mirror-card system, Protection answers to Expansion: the two don't oppose each other, they answer each other, like two sides of the same movement.
This page gives the card's general meaning. In a real draw, the Protection card is always read in relation to the other cards drawn and the intention set at the start — it's that combined reading, unique to each draw, that the online oracle develops.