• 大(person stretching limbs; figure of person with outstretched arms and legs)

A person standing with arms and legs spread wide symbolizes greatness and magnificence.

• ⺮(bamboo)
• 官(official; manage)

A bamboo tube is managed by officials, so 管 means both tube and to manage.

• 大(person stretching limbs; figure of person with outstretched arms and legs)

A person standing with arms and legs spread wide symbolizes greatness and magnificence.

• ⺮(bamboo)
• 官(official; manage)

A bamboo tube is managed by officials, so 管 means both tube and to manage.