Can you shutdown and enable VLANs while within the configuration of other VLANs?

SW2(config)# no shutdown vlan 10

SW2(config)# shutdown vlan 20

SW2(config)# vlan 30 <------------- This is where I'm confused.

SW2(config-vlan)# no shutdown l

SW2(config-vlan)# vlan 40 l

SW2(config-vlan)# shutdown V

When I enter in sw2(config)# vlan30, I go into the configuration mode of that vlan. So isn't every command I enter after that point supposed to be associated with that specific vlan? How is it that I can access other vlans from the configuration interface of another vlan?