Pressure Build?

Can someone explain in more in-depth terms what a pressure build is?
I did a search and figured out that it basically puts pressure on the other team till the monks are energy less.
What would this constitute?
Would you split the team on multiple targets spreading easily spammable conditions and hexes and then when the healers run out switch to 1 target?
What are some of the skills you might take (as a team not as a single person).

Thanks,

Rafe