Again, falling in the Spirit is not a ritual. It is usually not something planned. God just makes it happen to minister to those who can be ministered to better this way than some other way. It is not similar to the sin of Nadab and Abihu or the making and worship of the golden calf. Those events took the hearts of men away from God almighty, but being slain or falling under the Spirit causes concentration to be on the Lord. The biblical and non-biblical experiences that are not pointed toward God or giving glory to Him are totally in another category than experiences and practices that do. Pentecostals accept the latter, but not the former. I think we leaders of believers need to consciously give the right of way to the Holy Spirit in our services, since it has become ordinary to rule out demonstrations of God’s power that we do not understand, and that is because we fear losing control of the services that are really the responsibility of Christ in His Church.