The Spirit is like a candle light that gives light. We can do things that help the Holy Ghost to be with us and we can do things that drive away or "quench" the Spirit. 1 Thes 5:19
1. In a clear container put a couple of candles (tea-lights are ideal). Light them.
2. Pour a cm or so of white vinegar in the bottom.
3. Add some bi-carbonate soda into the vinegar (being careful not to splash)
4. Carbon di-oxide is created within the container, driving away the oxygen and quenching the candle (ie the Spirit).
* Try lighting the candle again. You can't until the blow out the carbon di-oxide.
NB. You probably can't light candles inside the chapel.