Add spaces: Thismeansthatthestructureitselfweakensinitsfunctionalsense.

Answer: This means that the structure itself weakens in its functional sense.

Add spaces: Quicklybuildfieldmappingbetweensourceandtargetdataset.

Answer: Quickly build field mapping between source and target dataset.

Add spaces: Whatistheconnectionbetweenprayerandfasting?

Answer:
What is the connection between prayer and fasting?