Further Study: Read "The Shaking" in Last Day Events, pp. 172-182. Consider what susceptibilities and weaknesses you may have that would endanger you during this time.
Find Ezekiel 37:1-14 how the Holy Spirit can give you victory during the shaking.
"Fellow Christian, Satan knows your weakness; therefore cling to Jesus. Abiding in God's love, you may stand every test. The righteousness of Christ alone can give you power to stem the tide of evil that is sweeping over the world. Bring faith into you experience. Faith lightens every burden, relieves every weariness. Providence that are now mysterious you may solve by continued trust in God. Walk by faith in the path He marks out. Trials will come, but go forward. This will strengthen your faith and fit you for service. The records of sacred history are written, not merely that we may read and wonder, but that the same faith which wrought in God's servants of old may work in us. In no less marked manner will the Lord work now, wherever there are hearts of faith to be channels of His power." - Prophets and Kings, p. 175.
Summary: God purifies His church through the shaking. Laodicean lukewarmness, heresies, the straight testimony of the True Witness, and persecution are the principal causes for the shaking. but the church does not disintegrate. Instead, the falsehearted leave its fellowship, while the consecrated remain, their experience deepened and purified by the trial.