seize upon

To grasp or take hold of (an object) suddenly, forcibly, or tightly.

To take up, embrace, enact, or turn eagerly to (a plan, idea, ideology, cause, practice, method, etc.); to grasp, understand, and accept quickly; to adopt wholeheartedly or vigorously.

To take possession of or claim (an idea, person, event, etc.) as one's own; to assimilate, absorb, annex, co-opt.