Spells and spell-like effects that target you are absorbed, their energy stored to power spells of your own. Absorption absorbs only ranged spells that have you as a target. Touch spells, effect spells, and area spells that affect you cannot be absorbed.

Once the spell is cast, you can absorb 7 spell levels. The level of each spell you absorb is subtracted from the total. If a spell exceeds the number of levels remaining to be absorbed it does nothing or you can spend half the spell's level rounded up and gain advantage on the saving throw and resistance if the spell does damage.

You can use captured spell energy to cast any spell you know or have prepared. The levels of spell energy you have stored must be equal to or greater than the level of the spell you want to cast, and you must have at hand (and expend) any material components required for the spell.